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rds_umn

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Reviewed-by: Wagner, Fabian <fabian.wagner@t-systems.com>
Co-authored-by: wangdengke2 <wangdengke2@huawei.com>
Co-committed-by: wangdengke2 <wangdengke2@huawei.com>
This commit is contained in:
Wang , Deng Ke
2026-04-02 09:58:19 +00:00
committed by zuul
parent 8343d6fd15
commit 88b6007443
116 changed files with 647 additions and 383 deletions
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<tr id="en-us_topic_add_read_replica__row12411434193817"><td class="cellrowborder" valign="top" width="17.669999999999998%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="en-us_topic_add_read_replica__p174213423812">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="82.33%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><p id="en-us_topic_add_read_replica__p33881249161918">Determines the DB instance read/write speed. The higher the maximum throughput is, the higher the DB instance read/write speed can be.</p>
<ul id="en-us_topic_add_read_replica__ul2388249181917"><li id="en-us_topic_add_read_replica__li1038974918192"><strong id="en-us_topic_add_read_replica__b1338954915194">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="en-us_topic_add_read_replica__li15389749101912"><strong id="en-us_topic_add_read_replica__b113894496197">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li></ul>
<ul id="en-us_topic_add_read_replica__ul2388249181917"><li id="en-us_topic_add_read_replica__li1038974918192"><strong id="en-us_topic_add_read_replica__b1338954915194">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="en-us_topic_add_read_replica__li15389749101912"><strong id="en-us_topic_add_read_replica__b113894496197">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li><li id="en-us_topic_add_read_replica__li89539591842"><strong id="en-us_topic_add_read_replica__b5120123168">Flexible SSD</strong>: decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</li></ul>
</td>
</tr>
<tr id="en-us_topic_add_read_replica__row986226171118"><td class="cellrowborder" valign="top" width="17.669999999999998%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="en-us_topic_add_read_replica__p5363100191215">AZ</p>
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<p id="en-us_topic_add_read_replica__p29201516144816">By default, storage space of a read replica is the same as that of the primary DB instance.</p>
</td>
</tr>
<tr id="en-us_topic_add_read_replica__row35781941112"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.5.2.3.2.3.1.1 "><p id="en-us_topic_add_read_replica__p957810411419">IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.3.2.5.2.3.2.3.1.2 "><p id="en-us_topic_add_read_replica__p1479043414912">This parameter is required when the storage type is <strong id="en-us_topic_add_read_replica__b59745445916">Flexible SSD</strong>.</p>
<p id="en-us_topic_add_read_replica__p164560229108">The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</td>
</tr>
<tr id="en-us_topic_add_read_replica__row119831641519"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.5.2.3.2.3.1.1 "><p id="en-us_topic_add_read_replica__p1398311411817">Throughput</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.3.2.5.2.3.2.3.1.2 "><p id="en-us_topic_add_read_replica__p33333381693">This parameter is required when the storage type is <strong id="en-us_topic_add_read_replica__b1080524813911">Flexible SSD</strong>.</p>
<p id="en-us_topic_add_read_replica__p2407414152616">The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</td>
</tr>
<tr id="en-us_topic_add_read_replica__row1594852605117"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.5.2.3.2.3.1.1 "><p id="en-us_topic_add_read_replica__p595744141914">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.3.2.5.2.3.2.3.1.2 "><p id="en-us_topic_add_read_replica__p124855615294">Enabling disk encryption enhances data security but reduces the database's read and write performance by 5%.</p>

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</div></div>
</p></li></ol>
</div>
<div class="section" id="en-us_topic_connect_instance__en-us_topic_0154555358_en-us_topic_0153118658_section335618164205"><h4 class="sectiontitle">Using SSL to Connect to a DB Instance</h4><ol id="en-us_topic_connect_instance__en-us_topic_0154555358_en-us_topic_0153118658_ol9899222162618"><li id="en-us_topic_connect_instance__li17251143135117"><span>Log in to the management console.</span></li><li id="en-us_topic_connect_instance__li42514315519"><span>Click <span><img id="en-us_topic_connect_instance__rds_02_0008_image192529212293" src="en-us_image_0000001145051824.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_connect_instance__li52544395118"><span>Click <strong id="en-us_topic_connect_instance__rds_02_0008_b653516366542">Service List</strong>. Under <strong id="en-us_topic_connect_instance__rds_02_0008_b1753663645417">Database</strong>, click <strong id="en-us_topic_connect_instance__rds_02_0008_b4536193645417">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_connect_instance__en-us_topic_0154555358_li2033132135913"><span>On the <span class="uicontrol" id="en-us_topic_connect_instance__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. In the <strong id="en-us_topic_connect_instance__b187171743261">Basic Information</strong> area on the <strong id="en-us_topic_connect_instance__b175261916372">Overview</strong> page, click <strong id="en-us_topic_connect_instance__b79964467716">Download</strong> in the <strong id="en-us_topic_connect_instance__b19463123262315">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="en-us_topic_connect_instance__li1199511101410"><span>Import the root certificate to the Linux OS on the <span id="en-us_topic_connect_instance__text142115244282">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></span><p><div class="note" id="en-us_topic_connect_instance__note0920161610366"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="en-us_topic_connect_instance__ul11920141603613"><li id="en-us_topic_connect_instance__li89205162367">Since April 2017, RDS has offered a new root certificate that has a 20-year validation period. The new certificate takes effect after DB instances are rebooted. Replace the old certificate before it expires to improve system security.<p id="en-us_topic_connect_instance__p3920151616360"><a name="en-us_topic_connect_instance__li89205162367"></a><a name="li89205162367"></a>For details, see section <a href="rds_faq_0051.html">How Can I Identify the Validity Period of an SSL Root Certificate?</a></p>
<div class="section" id="en-us_topic_connect_instance__en-us_topic_0154555358_en-us_topic_0153118658_section335618164205"><h4 class="sectiontitle">Using SSL to Connect to a DB Instance</h4><ol id="en-us_topic_connect_instance__en-us_topic_0154555358_en-us_topic_0153118658_ol9899222162618"><li id="en-us_topic_connect_instance__li17251143135117"><span>Log in to the management console.</span></li><li id="en-us_topic_connect_instance__li42514315519"><span>Click <span><img id="en-us_topic_connect_instance__rds_02_0008_image192529212293" src="en-us_image_0000001145051824.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_connect_instance__li52544395118"><span>Click <strong id="en-us_topic_connect_instance__rds_02_0008_b653516366542">Service List</strong>. Under <strong id="en-us_topic_connect_instance__rds_02_0008_b1753663645417">Database</strong>, click <strong id="en-us_topic_connect_instance__rds_02_0008_b4536193645417">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_connect_instance__en-us_topic_0154555358_li2033132135913"><span>On the <span class="uicontrol" id="en-us_topic_connect_instance__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. Click <strong id="en-us_topic_connect_instance__b79964467716">Download</strong> under <strong id="en-us_topic_connect_instance__b7321729184510">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</span></li><li id="en-us_topic_connect_instance__li1199511101410"><span>Import the root certificate to the Linux OS on the <span id="en-us_topic_connect_instance__text142115244282">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></span><p><div class="note" id="en-us_topic_connect_instance__note0920161610366"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="en-us_topic_connect_instance__ul11920141603613"><li id="en-us_topic_connect_instance__li89205162367">Since April 2017, RDS has offered a new root certificate that has a 20-year validation period. The new certificate takes effect after DB instances are rebooted. Replace the old certificate before it expires to improve system security.<p id="en-us_topic_connect_instance__p3920151616360"><a name="en-us_topic_connect_instance__li89205162367"></a><a name="li89205162367"></a>For details, see section <a href="rds_faq_0051.html">How Can I Identify the Validity Period of an SSL Root Certificate?</a></p>
</li><li id="en-us_topic_connect_instance__li12920111614365">You can also download the certificate bundle, which contains both the new certificate provided since April 2017 and the old certificate.</li></ul>
</div></div>
</p></li><li id="en-us_topic_connect_instance__en-us_topic_0154555358_en-us_topic_0153118658_li47772152307"><span>Connect to an <span id="en-us_topic_connect_instance__text1343318589515">RDS</span> DB instance. The Linux OS is used as an example.</span><p><div class="p" id="en-us_topic_connect_instance__en-us_topic_0154555358_p934734613117"><strong id="en-us_topic_connect_instance__en-us_topic_0154555358_abecce5c0334a48b89ec244bae0261d8e">mysql -h </strong>&lt;<em id="en-us_topic_connect_instance__en-us_topic_0154555358_a7a6bd58865d945629cd5aaccec79ea15">host</em>&gt;<strong id="en-us_topic_connect_instance__en-us_topic_0154555358_a64fd5d6a27ac4cdca07557dfdc711ef6"> -P </strong><em id="en-us_topic_connect_instance__en-us_topic_0154555358_i996438155215">&lt;port&gt; </em><strong id="en-us_topic_connect_instance__en-us_topic_0154555358_a7f1f30f87b7e4833ad19d34bfd0b98a0">-u </strong>&lt;<em id="en-us_topic_connect_instance__en-us_topic_0154555358_aab7fc4200c8444ce84eb789f09d5400d">userName</em>&gt;<strong id="en-us_topic_connect_instance__en-us_topic_0154555358_a7a0c62367aea4c7788824ed1a72385eb"> -p </strong><strong id="en-us_topic_connect_instance__en-us_topic_0154555358_ac45fcb3543ad494ca048e37d2c18009b">--ssl-ca=</strong>&lt;<em id="en-us_topic_connect_instance__en-us_topic_0154555358_a1a7a070c17ed409bb27859594b226dc4">caDIR</em>&gt;

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<a name="en-us_topic_scale_cluster"></a><a name="en-us_topic_scale_cluster"></a>
<h1 class="topictitle1">Scaling up Storage Space</h1>
<h1 class="topictitle1">Scaling Up Storage Space</h1>
<div id="body1471395156918"><div class="section" id="en-us_topic_scale_cluster__section3404387132643"><h4 class="sectiontitle">Scenarios</h4><p id="en-us_topic_scale_cluster__p18583743125018">If the original storage space is insufficient as your services grow, <span class="keyword" id="en-us_topic_scale_cluster__keyword12868112613102">scale up storage space</span> of your DB instance. </p>
<p id="en-us_topic_scale_cluster__p1980135514479">You are advised to set alarm rules for the storage space usage by referring to <a href="rds_06_0002.html">Setting Alarm Rules</a>.</p>
<p id="en-us_topic_scale_cluster__a9303b0396b0b4a60b481f52ba80cc9fd">RDS allows you to <span class="keyword" id="en-us_topic_scale_cluster__keyword5942164810274">scale up storage space</span> of DB instances but you cannot change the storage type. During the scale-up period, services are not interrupted.</p>
<p id="en-us_topic_scale_cluster__p17741546181713"><strong id="en-us_topic_scale_cluster__b98811773486">Services are not interrupted during storage scale-up.</strong>If you need to change the storage type, refer to <a href="rds_05_0140.html">Changing a Storage Type</a>.</p>
</div>
<div class="section" id="en-us_topic_scale_cluster__section18619499194"><h4 class="sectiontitle">Instance Becomes Read-Only When Storage Is Full</h4><p id="en-us_topic_scale_cluster__p169907655719">For details about the causes and solutions of insufficient storage space, see <a href="rds_faq_0046.html">What Should I Do If My Data Exceeds the Available Storage of an RDS DB Instance?</a></p>
@ -37,19 +37,19 @@
<div class="section" id="en-us_topic_scale_cluster__section6787733202313"><h4 class="sectiontitle">Constraints</h4><ul id="en-us_topic_scale_cluster__ul979225822314"><li id="en-us_topic_scale_cluster__li552515261357">The maximum allowed storage is 4,000 GB. There is no limit on the number of scale-ups.</li><li id="en-us_topic_scale_cluster__li67941558132319">The DB instance is in <strong id="en-us_topic_scale_cluster__b1222272173915">Scaling up</strong> state when its storage space is being scaled up and the backup services are not affected.</li><li id="en-us_topic_scale_cluster__li5794125810233">For primary/standby DB instances, scaling up the primary DB instance will cause the standby DB instance to also be scaled up accordingly.</li><li id="en-us_topic_scale_cluster__li147948588236">You cannot reboot or delete a DB instance that is being scaled up.</li><li id="en-us_topic_scale_cluster__li3794858162316">Storage space can only be scaled up, not down.</li><li id="en-us_topic_scale_cluster__li1179419586235">If you scale up a DB instance with disks encrypted, the expanded storage space will be encrypted using the original encryption key.</li></ul>
</div>
<div class="section" id="en-us_topic_scale_cluster__section3535102285710"><h4 class="sectiontitle">Scaling up a Primary DB Instance</h4><ol id="en-us_topic_scale_cluster__ol4816555385651"><li id="en-us_topic_scale_cluster__li17616348171"><span>Log in to the management console.</span></li><li id="en-us_topic_scale_cluster__li146168481712"><span>Click <span><img id="en-us_topic_scale_cluster__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_scale_cluster__li96167481711"><span>Click <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_scale_cluster__li683691813294"><span>On the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol59770215612"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol697982111611"><b>More</b></span> &gt; <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol19801211367"><b>Scale Storage Space</b></span> in the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol2098110215613"><b>Operation</b></span> column.</span><p><p id="en-us_topic_scale_cluster__p31671032597">You can also perform the following operations to scale up storage space:</p>
<ul id="en-us_topic_scale_cluster__ul1779911333910"><li id="en-us_topic_scale_cluster__li157991331911">Click the target DB instance to enter the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol199829114610398"><b>Overview</b></span> page. In the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol8206143913235"><b>Storage &amp; Backup</b></span> area, click <strong id="en-us_topic_scale_cluster__b1651811381401">Scale Storage Space</strong>.</li></ul>
<ul id="en-us_topic_scale_cluster__ul1779911333910"><li id="en-us_topic_scale_cluster__li157991331911">Click the target DB instance to enter the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol18378112617361"><b>Summary</b></span> page. In the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol8206143913235"><b>Storage &amp; Backup</b></span> area, click <strong id="en-us_topic_scale_cluster__b1651811381401">Scale Storage Space</strong>.</li></ul>
</p></li><li id="en-us_topic_scale_cluster__lf939df2e325d47d490c6ffdacf5f0b19"><span>On the displayed page, specify the new storage space and click <strong id="en-us_topic_scale_cluster__b141936291142">Next</strong>.</span><p><p id="en-us_topic_scale_cluster__p1747816599218">The minimum increment for each scaling is 10 GB.</p>
</p></li><li id="en-us_topic_scale_cluster__lfe57f85e1f914c18a27135b833fe5532"><span>Confirm specifications.</span><p><ul id="en-us_topic_scale_cluster__ua113088d9aca48eb851347933c5477d7"><li id="en-us_topic_scale_cluster__l931174cebfd94b7cb373d721bc28a3b0">If you need to modify your settings, click <strong id="en-us_topic_scale_cluster__b84235270614124">Previous</strong>.</li><li id="en-us_topic_scale_cluster__li26523207131216">If you do not need to modify your settings, click <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol23094277711573"><b>Submit</b></span>.</li></ul>
</p></li><li id="en-us_topic_scale_cluster__li63124829102244"><span>View the scale-up result.</span><p><p id="en-us_topic_scale_cluster__p39906465377">Scaling up storage space takes 3-5 minutes. During the time period, the status of the DB instance on the <strong id="en-us_topic_scale_cluster__b1361971413419">Instances</strong> page will be <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol96201414848"><b>Scaling up</b></span>. Click the DB instance and view the utilization on the displayed <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol9125123374713"><b>Overview</b></span> page to verify that the scale-up is successful.</p>
</p></li><li id="en-us_topic_scale_cluster__li63124829102244"><span>View the scale-up result.</span><p><p id="en-us_topic_scale_cluster__p39906465377">Scaling up storage space takes 3-5 minutes. During the time period, the status of the DB instance on the <strong id="en-us_topic_scale_cluster__b1361971413419">Instances</strong> page will be <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol96201414848"><b>Scaling up</b></span>. Click the DB instance and view the utilization on the displayed <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol164609277360"><b>Summary</b></span> page to verify that the scale-up is successful.</p>
<p id="en-us_topic_scale_cluster__p43623947131217">If the DB instance is running the <span class="keyword" id="en-us_topic_scale_cluster__keyword113924200015">MySQL</span> DB engine, you can view the detailed progress and result of the task on the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol2063919765152529"><b>Task Center</b></span> page. For details, see section <a href="rds_05_0007.html">Task Center</a>.</p>
</p></li></ol>
</div>
<div class="section" id="en-us_topic_scale_cluster__section25847103185530"><h4 class="sectiontitle">Scaling up a Read Replica</h4><p id="en-us_topic_scale_cluster__p12530131154810">Scaling up the storage space of a read replica does not affect that of the primary DB instance. Therefore, you can separately scale read replicas to meet service requirements. New storage space of read replicas after scaling up must be greater than or equal to that of the primary DB instance.</p>
<ol id="en-us_topic_scale_cluster__o8ff2596861e14d5ebd5092a2956bc4e5"><li id="en-us_topic_scale_cluster__li1642619113013"><span>Log in to the management console.</span></li><li id="en-us_topic_scale_cluster__li442101915302"><span>Click <span><img id="en-us_topic_scale_cluster__rds_modify_instance_name_en-us_topic_0192953815_image192529212293_1" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_scale_cluster__li24211915305"><span>Click <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b171171523153019_1">Service List</strong>. Under <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b111722319302_1">Database</strong>, click <strong id="en-us_topic_scale_cluster__rds_modify_instance_name_b15118152363010_1">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_scale_cluster__li466073618562"><span>On the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol1799311348813"><b>Instances</b></span> page, locate the target DB instance and click <span><img id="en-us_topic_scale_cluster__image14169201820419" src="en-us_image_0000002459797326.png"></span> in front of it. Locate a read replica to be scaled and choose <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol139944341287"><b>More</b></span> &gt; <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol139947341789"><b>Scale Storage Space</b></span> in the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol1399563420815"><b>Operation</b></span> column.</span><p><p id="en-us_topic_scale_cluster__p123552043142519">You can also perform the following operations to scale up storage space:</p>
<ul id="en-us_topic_scale_cluster__ul6355154342519"><li id="en-us_topic_scale_cluster__li1335514352514">Click the target DB instance to enter the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol11311556144712"><b>Overview</b></span> page. In the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol125323020274"><b>Storage &amp; Backup</b></span> area, click <strong id="en-us_topic_scale_cluster__b1554143022710">Scale Storage Space</strong>.</li></ul>
<ul id="en-us_topic_scale_cluster__ul6355154342519"><li id="en-us_topic_scale_cluster__li1335514352514">Click the target DB instance to enter the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol2738142853614"><b>Summary</b></span> page. In the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol125323020274"><b>Storage &amp; Backup</b></span> area, click <strong id="en-us_topic_scale_cluster__b1554143022710">Scale Storage Space</strong>.</li></ul>
</p></li><li id="en-us_topic_scale_cluster__lc3bba199e5334271abf23d5084307b79"><span>On the displayed page, specify the new storage space and click <strong id="en-us_topic_scale_cluster__b2771042658">Next</strong>.</span><p><p id="en-us_topic_scale_cluster__p059124562616">The minimum increment for each scaling is 10 GB.</p>
</p></li><li id="en-us_topic_scale_cluster__l502f9afc3a70472d8a410c2211d2c16a"><span>Confirm specifications.</span><p><ul id="en-us_topic_scale_cluster__u9a8965c4177d4087953f2ca1800a8fb3"><li id="en-us_topic_scale_cluster__lfdc9be1a0749498a945b90229e54b14d">If you need to modify your settings, click <strong id="en-us_topic_scale_cluster__b124746473">Previous</strong>.</li><li id="en-us_topic_scale_cluster__l24ffa63e5ea245618e438fb8a760837e">If you do not need to modify your settings, click <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol11893205154618"><b>Submit</b></span>.</li></ul>
</p></li><li id="en-us_topic_scale_cluster__li35572048102345"><span>View the scale-up result.</span><p><p id="en-us_topic_scale_cluster__en-us_topic_0086556947_p39906465377">Scaling up storage space takes 3-5 minutes. During the time period, the status of the read replica on the <strong id="en-us_topic_scale_cluster__b552981030171619">Instances</strong> page will be <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol1517153949922"><b>Scaling up</b></span>. Click the read replica and view the utilization on the displayed <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol6287192614816"><b>Overview</b></span> page to verify that the scale-up is successful.</p>
</p></li><li id="en-us_topic_scale_cluster__li35572048102345"><span>View the scale-up result.</span><p><p id="en-us_topic_scale_cluster__en-us_topic_0086556947_p39906465377">Scaling up storage space takes 3-5 minutes. During the time period, the status of the read replica on the <strong id="en-us_topic_scale_cluster__b552981030171619">Instances</strong> page will be <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol1517153949922"><b>Scaling up</b></span>. Click the read replica and view the utilization on the displayed <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol6521429153612"><b>Summary</b></span> page to verify that the scale-up is successful.</p>
<p id="en-us_topic_scale_cluster__adc832bd6f6654f998c5ad1c124c029cd">If the read replica is running the MySQL DB engine, you can view the detailed progress and result of the task on the <span class="uicontrol" id="en-us_topic_scale_cluster__uicontrol5676142818465"><b>Task Center</b></span> page. For details, see section <a href="rds_05_0007.html">Task Center</a>.</p>
</p></li></ol>
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<div class="section" id="en-us_topic_scale_rds__section17604457192012"><a name="en-us_topic_scale_rds__section17604457192012"></a><a name="section17604457192012"></a><h4 class="sectiontitle">Constraints</h4><ul id="en-us_topic_scale_rds__ul166113117219"><li id="en-us_topic_scale_rds__li15611411112116">A DB instance cannot be deleted when its instance class is being changed.</li><li id="en-us_topic_scale_rds__li35651136112110">After you change instance classes, the DB instances will be rebooted and service will be interrupted. Therefore, you are advised to change instance classes during off-peak hours.</li></ul>
</div>
<div class="section" id="en-us_topic_scale_rds__section4298797218435"><h4 class="sectiontitle">Procedure</h4><ol id="en-us_topic_scale_rds__ol5947368818435"><li id="en-us_topic_scale_rds__li17616348171"><span>Log in to the management console.</span></li><li id="en-us_topic_scale_rds__li146168481712"><span>Click <span><img id="en-us_topic_scale_rds__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_scale_rds__li96167481711"><span>Click <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_scale_rds__li45651852101719"><span>On the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol1223145619914"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol42324561915"><b>More</b></span> &gt; <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol9233155612917"><b>Change Instance Class</b></span> in the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol192351956397"><b>Operation</b></span> column.</span><p><p id="en-us_topic_scale_rds__p38931353201717">Alternatively, click the target DB instance to go to the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol199829114610398"><b>Overview</b></span> page. Under <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol1355913137453"><b>Instance Class</b></span>, click <strong id="en-us_topic_scale_rds__b227433244111">Configure</strong>.</p>
<div class="section" id="en-us_topic_scale_rds__section4298797218435"><h4 class="sectiontitle">Procedure</h4><ol id="en-us_topic_scale_rds__ol5947368818435"><li id="en-us_topic_scale_rds__li17616348171"><span>Log in to the management console.</span></li><li id="en-us_topic_scale_rds__li146168481712"><span>Click <span><img id="en-us_topic_scale_rds__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_scale_rds__li96167481711"><span>Click <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="en-us_topic_scale_rds__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_scale_rds__li45651852101719"><span>On the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol1223145619914"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol42324561915"><b>More</b></span> &gt; <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol9233155612917"><b>Change Instance Class</b></span> in the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol192351956397"><b>Operation</b></span> column.</span><p><p id="en-us_topic_scale_rds__p38931353201717">Alternatively, click the target DB instance to go to the <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol1632952433619"><b>Summary</b></span> page. Under <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol1355913137453"><b>Instance Class</b></span>, click <strong id="en-us_topic_scale_rds__b227433244111">Configure</strong>.</p>
</p></li><li id="en-us_topic_scale_rds__lf939df2e325d47d490c6ffdacf5f0b19"><span>On the displayed page, specify the new instance class and click <span class="uicontrol" id="en-us_topic_scale_rds__en-us_topic_0134328161_uicontrol4647233914250"><b>Next</b></span>.</span><p><p id="en-us_topic_scale_rds__p12198177163318"></p>
</p></li><li id="en-us_topic_scale_rds__li984592715347"><span>View the DB instance class change result.</span><p><p id="en-us_topic_scale_rds__p187801454131614">Changing the DB instance class takes 5–15 minutes. During this period, the status of the DB instance on the <strong id="en-us_topic_scale_rds__b1968114225279">Instances</strong> page is <strong id="en-us_topic_scale_rds__b1231643118279">Changing instance class</strong>. After a few minutes, click the DB instance and view the instance class on the displayed <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol7367144818432"><b>Overview</b></span> page to check that the change is successful.</p>
</p></li><li id="en-us_topic_scale_rds__li984592715347"><span>View the DB instance class change result.</span><p><p id="en-us_topic_scale_rds__p187801454131614">Changing the DB instance class takes 5–15 minutes. During this period, the status of the DB instance on the <strong id="en-us_topic_scale_rds__b1968114225279">Instances</strong> page is <strong id="en-us_topic_scale_rds__b1231643118279">Changing instance class</strong>. After a few minutes, click the DB instance and view the instance class on the displayed <span class="uicontrol" id="en-us_topic_scale_rds__uicontrol11442122514369"><b>Summary</b></span> page to check that the change is successful.</p>
<div class="notice" id="en-us_topic_scale_rds__note11544369163244"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="en-us_topic_scale_rds__p2129101219494">After you change a MySQL instance class, the values of the following parameters will also be changed accordingly: <span class="parmname" id="en-us_topic_scale_rds__parmname90532015093248"><b>back_log</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname1198729222143910"><b>innodb_buffer_pool_size</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname1247402425143910"><b>innodb_log_buffer_size</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname2062536632143910"><b>innodb_log_files_in_group</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname100981576143910"><b>max_connections</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname140111938143910"><b>innodb_page_cleaners</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname1366326264143910"><b>innodb_buffer_pool_instances</b></span>, <span class="parmname" id="en-us_topic_scale_rds__parmname376466003143910"><b>threadpool_size</b></span>, and <span class="parmname" id="en-us_topic_scale_rds__parmname708497802143910"><b>slave_parallel_workers</b></span>.</p>
</div></div>
</p></li></ol>

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</div>
</p></li></ol>
</div>
<div class="section" id="en-us_topic_sqlserver_reset_password__section12149154434113"><h4 class="sectiontitle">Method 2</h4><ol id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_ol796760111472"><li id="en-us_topic_sqlserver_reset_password__li415010322371"><span>Log in to the management console.</span></li><li id="en-us_topic_sqlserver_reset_password__li6150103216374"><span>Click <span><img id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_en-us_topic_0192953815_image192529212293_1" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_sqlserver_reset_password__li915053213377"><span>Click <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b171171523153019_1">Service List</strong>. Under <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b111722319302_1">Database</strong>, click <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b15118152363010_1">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_li61161897172844"><span>On the <strong id="en-us_topic_sqlserver_reset_password__b9951311191120">Instances</strong> page, click the target DB instance.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0192954253_li152771616238"><span>On the <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b520213362917">Overview</strong> page, find <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b165392054011">Administrator</strong> and click <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b1635844024020">Reset Password</strong> under it.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_li36398892172958"><span>In the displayed dialog box, enter and confirm a new password.</span><p><div class="notice" id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_note5427133210139"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_en-us_topic_0086556964_p72930251247">Keep this password secure. The system cannot retrieve it.</p>
<div class="section" id="en-us_topic_sqlserver_reset_password__section12149154434113"><h4 class="sectiontitle">Method 2</h4><ol id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_ol796760111472"><li id="en-us_topic_sqlserver_reset_password__li415010322371"><span>Log in to the management console.</span></li><li id="en-us_topic_sqlserver_reset_password__li6150103216374"><span>Click <span><img id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_en-us_topic_0192953815_image192529212293_1" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="en-us_topic_sqlserver_reset_password__li915053213377"><span>Click <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b171171523153019_1">Service List</strong>. Under <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b111722319302_1">Database</strong>, click <strong id="en-us_topic_sqlserver_reset_password__rds_modify_instance_name_b15118152363010_1">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_li61161897172844"><span>On the <strong id="en-us_topic_sqlserver_reset_password__b9951311191120">Instances</strong> page, click the target DB instance.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0192954253_li152771616238"><span>On the <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b564855482511">Summary</strong> page, find <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b165392054011">Administrator</strong> and click <strong id="en-us_topic_sqlserver_reset_password__rds_reset_password_b1635844024020">Reset Password</strong> under it.</span></li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_li36398892172958"><span>In the displayed dialog box, enter and confirm a new password.</span><p><div class="notice" id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_note5427133210139"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_en-us_topic_0086556964_p72930251247">Keep this password secure. The system cannot retrieve it.</p>
</div></div>
<p id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_p1548436881">The new password must consist of 8 to 32 characters and contain at least three types of the following characters: uppercase letters, lowercase letters, digits, and special characters (~!@#$%^*-_+?,). Enter a strong password and periodically change it for security reasons.</p>
<div class="p" id="en-us_topic_sqlserver_reset_password__p8830181016717">If provided password will be considered by system as weak, you will receive an error and you should provide stronger password.<ul id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_udeca270c0f4c49a991fae926b1a90eb0"><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_l47afef1c78ec44c4b6feab9ec6c68324">To submit the new password, click <strong id="en-us_topic_sqlserver_reset_password__b1697516216315">OK</strong>.</li><li id="en-us_topic_sqlserver_reset_password__en-us_topic_0171122716_l830e34f1e56244b899449f020bd1c5cf">To cancel the reset operation, click <strong id="en-us_topic_sqlserver_reset_password__b1730020415312">Cancel</strong>.</li></ul>

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<h1 class="topictitle1">DB Instance Storage Types</h1>
<div id="body1572250937727"><p id="rds_01_0020__p141541598377">The database system is generally an important part of an IT system and has high requirements on storage I/O performance. You can select a storage type based on service demands. You cannot change the storage type after the DB instance is created.</p>
<div class="section" id="rds_01_0020__section19617114611142"><h4 class="sectiontitle">Description</h4><p id="rds_01_0020__p15502173814215">RDS supports <strong id="rds_01_0020__b19431182655313">Cloud SSD and </strong><strong id="rds_01_0020__b1634810413416">Extreme SSD</strong> to suit different performance requirements of your workloads.</p>
<ul id="rds_01_0020__ul17642104017155"><li id="rds_01_0020__li54901030151620">Cloud SSD<p id="rds_01_0020__p17134165501618"><a name="rds_01_0020__li54901030151620"></a><a name="li54901030151620"></a>Stores data in cloud disks for decoupled storage and compute. The maximum throughput is 350 MB/s.</p>
<div class="section" id="rds_01_0020__section19617114611142"><h4 class="sectiontitle">Description</h4><div class="p" id="rds_01_0020__p15502173814215">RDS supports <strong id="rds_01_0020__b19431182655313">Cloud SSD, </strong><strong id="rds_01_0020__b1634810413416">Extreme SSD </strong>and<strong id="rds_01_0020__b734994124113"> Flexible SSD</strong> to suit different performance requirements of your workloads.<ul id="rds_01_0020__ul17642104017155"><li id="rds_01_0020__li54901030151620">Cloud SSD<p id="rds_01_0020__p17134165501618"><a name="rds_01_0020__li54901030151620"></a><a name="li54901030151620"></a>Stores data in cloud disks for decoupled storage and compute. The maximum throughput is 350 MB/s.</p>
</li><li id="rds_01_0020__li987316913174">Extreme SSD<p id="rds_01_0020__p12193381715"><a name="rds_01_0020__li987316913174"></a><a name="li987316913174"></a>Uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</p>
</li><li id="rds_01_0020__li7377132911578">Flexible SSD<p id="rds_01_0020__p51829327303"><a name="rds_01_0020__li7377132911578"></a><a name="li7377132911578"></a>Decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</p>
<p id="rds_01_0020__p25711583578">You can preconfigure an IOPS ranging from 3,000 to 128,000. This IOPS must also be less than or equal to 500 times the storage capacity. You can preconfigure a throughput ranging from 125 to 1,000 MiB/s. This throughput must also be less than or equal to the IOPS divided by 4.</p>
</li></ul>
</div>
</div>
<div class="section" id="rds_01_0020__section16335234194"><h4 class="sectiontitle">Performance Comparison</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_01_0020__table64124292310" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Performance comparison</caption><thead align="left"><tr id="rds_01_0020__row45124262311"><th align="left" class="cellrowborder" valign="top" width="29.073756432246995%" id="mcps1.3.3.2.2.4.1.1"><p id="rds_01_0020__p16534222313">Item</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_01_0020__table64124292310" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Performance comparison</caption><thead align="left"><tr id="rds_01_0020__row45124262311"><th align="left" class="cellrowborder" valign="top" width="21.488336713995942%" id="mcps1.3.3.2.2.5.1.1"><p id="rds_01_0020__p16534222313">Item</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="35.883361921097766%" id="mcps1.3.3.2.2.4.1.2"><p id="rds_01_0020__p6554232312">Cloud SSD</p>
<th align="left" class="cellrowborder" valign="top" width="26.521298174442187%" id="mcps1.3.3.2.2.5.1.2"><p id="rds_01_0020__p6554232312">Cloud SSD</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="35.042881646655225%" id="mcps1.3.3.2.2.4.1.3"><p id="rds_01_0020__p155184282318">Extreme SSD</p>
<th align="left" class="cellrowborder" valign="top" width="25.900101419878297%" id="mcps1.3.3.2.2.5.1.3"><p id="rds_01_0020__p155184282318">Extreme SSD</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="26.090263691683568%" id="mcps1.3.3.2.2.5.1.4"><p id="rds_01_0020__p1692814893711">Flexible SSD</p>
</th>
</tr>
</thead>
<tbody><tr id="rds_01_0020__row7516421236"><td class="cellrowborder" valign="top" width="29.073756432246995%" headers="mcps1.3.3.2.2.4.1.1 "><p id="rds_01_0020__p3594282312">I/O performance</p>
<tbody><tr id="rds_01_0020__row7516421236"><td class="cellrowborder" valign="top" width="21.488336713995942%" headers="mcps1.3.3.2.2.5.1.1 "><p id="rds_01_0020__p3594282312">I/O performance</p>
</td>
<td class="cellrowborder" valign="top" width="35.883361921097766%" headers="mcps1.3.3.2.2.4.1.2 "><p id="rds_01_0020__p15515425233">Subpar I/O performance due to additional network I/O overheads</p>
<td class="cellrowborder" valign="top" width="26.521298174442187%" headers="mcps1.3.3.2.2.5.1.2 "><p id="rds_01_0020__p15515425233">Subpar I/O performance due to additional network I/O overheads</p>
</td>
<td class="cellrowborder" valign="top" width="35.042881646655225%" headers="mcps1.3.3.2.2.4.1.3 "><p id="rds_01_0020__p145114214236">Higher I/O performance than cloud SSDs</p>
<td class="cellrowborder" valign="top" width="25.900101419878297%" headers="mcps1.3.3.2.2.5.1.3 "><p id="rds_01_0020__p145114214236">Higher I/O performance than cloud SSDs</p>
</td>
<td class="cellrowborder" valign="top" width="26.090263691683568%" headers="mcps1.3.3.2.2.5.1.4 "><p id="rds_01_0020__p1592813893718">On-demand IOPS and throughput</p>
</td>
</tr>
<tr id="rds_01_0020__row65134282312"><td class="cellrowborder" valign="top" width="29.073756432246995%" headers="mcps1.3.3.2.2.4.1.1 "><p id="rds_01_0020__p95124262312">Elastic scalability</p>
<tr id="rds_01_0020__row65134282312"><td class="cellrowborder" valign="top" width="21.488336713995942%" headers="mcps1.3.3.2.2.5.1.1 "><p id="rds_01_0020__p95124262312">Elastic scalability</p>
</td>
<td class="cellrowborder" valign="top" width="35.883361921097766%" headers="mcps1.3.3.2.2.4.1.2 "><p id="rds_01_0020__p7584252318">Scaling in seconds</p>
<td class="cellrowborder" valign="top" width="26.521298174442187%" headers="mcps1.3.3.2.2.5.1.2 "><p id="rds_01_0020__p7584252318">Scaling in seconds</p>
</td>
<td class="cellrowborder" valign="top" width="35.042881646655225%" headers="mcps1.3.3.2.2.4.1.3 "><p id="rds_01_0020__p1651042122311">Scaling in seconds</p>
<td class="cellrowborder" valign="top" width="25.900101419878297%" headers="mcps1.3.3.2.2.5.1.3 "><p id="rds_01_0020__p1651042122311">Scaling in seconds</p>
</td>
<td class="cellrowborder" valign="top" width="26.090263691683568%" headers="mcps1.3.3.2.2.5.1.4 "><p id="rds_01_0020__p159284883712">Scaling in seconds</p>
</td>
</tr>
<tr id="rds_01_0020__row5510426239"><td class="cellrowborder" valign="top" width="29.073756432246995%" headers="mcps1.3.3.2.2.4.1.1 "><p id="rds_01_0020__p5554220231">Maximum IOPS</p>
<tr id="rds_01_0020__row5510426239"><td class="cellrowborder" valign="top" width="21.488336713995942%" headers="mcps1.3.3.2.2.5.1.1 "><p id="rds_01_0020__p5554220231">Maximum IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="35.883361921097766%" headers="mcps1.3.3.2.2.4.1.2 "><p id="rds_01_0020__p6564252318">50,000</p>
<td class="cellrowborder" valign="top" width="26.521298174442187%" headers="mcps1.3.3.2.2.5.1.2 "><p id="rds_01_0020__p6564252318">50,000</p>
</td>
<td class="cellrowborder" valign="top" width="35.042881646655225%" headers="mcps1.3.3.2.2.4.1.3 "><p id="rds_01_0020__p55164242319">128,000</p>
<td class="cellrowborder" valign="top" width="25.900101419878297%" headers="mcps1.3.3.2.2.5.1.3 "><p id="rds_01_0020__p55164242319">128,000</p>
</td>
<td class="cellrowborder" valign="top" width="26.090263691683568%" headers="mcps1.3.3.2.2.5.1.4 "><p id="rds_01_0020__p169281682373">128,000</p>
</td>
</tr>
<tr id="rds_01_0020__row4514217238"><td class="cellrowborder" valign="top" width="29.073756432246995%" headers="mcps1.3.3.2.2.4.1.1 "><p id="rds_01_0020__p1755427233">Maximum throughput</p>
<tr id="rds_01_0020__row4514217238"><td class="cellrowborder" valign="top" width="21.488336713995942%" headers="mcps1.3.3.2.2.5.1.1 "><p id="rds_01_0020__p1755427233">Maximum throughput</p>
</td>
<td class="cellrowborder" valign="top" width="35.883361921097766%" headers="mcps1.3.3.2.2.4.1.2 "><p id="rds_01_0020__p651642132319">350 MiB/s</p>
<td class="cellrowborder" valign="top" width="26.521298174442187%" headers="mcps1.3.3.2.2.5.1.2 "><p id="rds_01_0020__p651642132319">350 MiB/s</p>
</td>
<td class="cellrowborder" valign="top" width="35.042881646655225%" headers="mcps1.3.3.2.2.4.1.3 "><p id="rds_01_0020__p195342122316">For specifications with more than 32 vCPUs, the maximum throughput is 1,000 MiB/s.</p>
<td class="cellrowborder" valign="top" width="25.900101419878297%" headers="mcps1.3.3.2.2.5.1.3 "><p id="rds_01_0020__p195342122316">For specifications with more than 32 vCPUs, the maximum throughput is 1,000 MiB/s.</p>
<p id="rds_01_0020__p1784134354013">For specifications with 32 vCPUs or fewer, the maximum throughput may not reach 1,000 MiB/s due to the underlying architecture.</p>
</td>
<td class="cellrowborder" valign="top" width="26.090263691683568%" headers="mcps1.3.3.2.2.5.1.4 "><p id="rds_01_0020__p1192814815374">1,000 MiB/s</p>
</td>
</tr>
<tr id="rds_01_0020__row677112541234"><td class="cellrowborder" valign="top" width="29.073756432246995%" headers="mcps1.3.3.2.2.4.1.1 "><p id="rds_01_0020__p18771554122314">Read/write latency</p>
<tr id="rds_01_0020__row677112541234"><td class="cellrowborder" valign="top" width="21.488336713995942%" headers="mcps1.3.3.2.2.5.1.1 "><p id="rds_01_0020__p18771554122314">Read/write latency</p>
</td>
<td class="cellrowborder" valign="top" width="35.883361921097766%" headers="mcps1.3.3.2.2.4.1.2 "><p id="rds_01_0020__p16771185442317">Medium</p>
<td class="cellrowborder" valign="top" width="26.521298174442187%" headers="mcps1.3.3.2.2.5.1.2 "><p id="rds_01_0020__p16771185442317">Medium</p>
</td>
<td class="cellrowborder" valign="top" width="35.042881646655225%" headers="mcps1.3.3.2.2.4.1.3 "><p id="rds_01_0020__p137711254142313">Medium</p>
<td class="cellrowborder" valign="top" width="25.900101419878297%" headers="mcps1.3.3.2.2.5.1.3 "><p id="rds_01_0020__p137711254142313">Medium</p>
</td>
<td class="cellrowborder" valign="top" width="26.090263691683568%" headers="mcps1.3.3.2.2.5.1.4 "><p id="rds_01_0020__p49289813716">Medium</p>
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<tr id="rds_01_0021__row1223994413545"><td class="cellrowborder" valign="top" width="18.76%" headers="mcps1.3.3.2.5.1.1 "><p id="rds_01_0021__p12391244145410">PostgreSQL</p>
</td>
<td class="cellrowborder" valign="top" width="30.810000000000002%" headers="mcps1.3.3.2.5.1.2 "><ul id="rds_01_0021__ul153957284"><li id="rds_01_0021__li1738992716537">17</li><li id="rds_01_0021__li931795312120">16</li><li id="rds_01_0021__li859374122512">15</li><li id="rds_01_0021__li999014355212">14</li><li id="rds_01_0021__li578915812569">13</li><li id="rds_01_0021__li99033116571">12</li></ul>
<td class="cellrowborder" valign="top" width="30.810000000000002%" headers="mcps1.3.3.2.5.1.2 "><ul id="rds_01_0021__ul153957284"><li id="rds_01_0021__li1738992716537">17</li><li id="rds_01_0021__li931795312120">16</li><li id="rds_01_0021__li859374122512">15</li><li id="rds_01_0021__li999014355212">14</li><li id="rds_01_0021__li578915812569">13</li></ul>
</td>
<td class="cellrowborder" valign="top" width="30.740000000000006%" headers="mcps1.3.3.2.5.1.3 "><ul id="rds_01_0021__ul679911214816"><li id="rds_01_0021__li18298633115316">17</li><li id="rds_01_0021__li095315710217">16</li><li id="rds_01_0021__li323388192520">15</li><li id="rds_01_0021__li6873739102110">14</li><li id="rds_01_0021__li11561141825619">13</li><li id="rds_01_0021__li877983015583">12</li></ul>
<td class="cellrowborder" valign="top" width="30.740000000000006%" headers="mcps1.3.3.2.5.1.3 "><ul id="rds_01_0021__ul679911214816"><li id="rds_01_0021__li18298633115316">17</li><li id="rds_01_0021__li095315710217">16</li><li id="rds_01_0021__li323388192520">15</li><li id="rds_01_0021__li6873739102110">14</li><li id="rds_01_0021__li11561141825619">13</li></ul>
</td>
<td class="cellrowborder" valign="top" width="19.69%" headers="mcps1.3.3.2.5.1.4 "><p id="rds_01_0021__p92311432122413">Not supported</p>
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<td class="cellrowborder" valign="top" width="16.66833316668333%" headers="mcps1.3.3.2.2.7.1.6 "><p id="rds_01_0089__p1044133318303">November 2026</p>
</td>
</tr>
<tr id="rds_01_0089__row7155161632212"><td class="cellrowborder" valign="top" width="11.938806119388062%" headers="mcps1.3.3.2.2.7.1.1 "><p id="rds_01_0089__p14441123343013">12</p>
</td>
<td class="cellrowborder" valign="top" width="17.848215178482153%" headers="mcps1.3.3.2.2.7.1.2 "><p id="rds_01_0089__p18441193333018">Commercial use</p>
</td>
<td class="cellrowborder" valign="top" width="17.528247175282473%" headers="mcps1.3.3.2.2.7.1.3 "><p id="rds_01_0089__p644113343011">October 2019</p>
</td>
<td class="cellrowborder" valign="top" width="18.188181181881813%" headers="mcps1.3.3.2.2.7.1.4 "><p id="rds_01_0089__p1441143393018">November 2024</p>
</td>
<td class="cellrowborder" valign="top" width="17.82821717828217%" headers="mcps1.3.3.2.2.7.1.5 "><p id="rds_01_0089__p4441133316303">February 2021</p>
</td>
<td class="cellrowborder" valign="top" width="16.66833316668333%" headers="mcps1.3.3.2.2.7.1.6 "><p id="rds_01_0089__p20441183315306">April 2026</p>
</td>
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<tr id="rds_02_0008__row1358513420295"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_02_0008__p6388049191912">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.2.2.3.1.2 "><p id="rds_02_0008__p33881249161918">Determines the DB instance read/write speed. The higher the maximum throughput is, the higher the DB instance read/write speed can be.</p>
<ul id="rds_02_0008__ul2388249181917"><li id="rds_02_0008__li1038974918192"><strong id="rds_02_0008__b1338954915194">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_02_0008__li15389749101912"><strong id="rds_02_0008__b113894496197">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li></ul>
<ul id="rds_02_0008__ul2388249181917"><li id="rds_02_0008__li1038974918192"><strong id="rds_02_0008__b1338954915194">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_02_0008__li15389749101912"><strong id="rds_02_0008__b113894496197">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li><li id="rds_02_0008__li89539591842"><strong id="rds_02_0008__b5120123168">Flexible SSD</strong>: decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</li></ul>
</td>
</tr>
<tr id="rds_02_0008__row1522599175410"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_02_0008__p112255955412">Primary AZ/Standby AZ</p>
@ -71,8 +71,6 @@
<tbody><tr id="rds_02_0008__row15225999544"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p3225169185417">Instance Class</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_02_0008__p32253910544">Refers to the CPU and memory of a DB instance. Different instance classes have different numbers of database connections and different maximum IOPS.</p>
<p id="rds_02_0008__p32256913542"></p>
<p id="rds_02_0008__p2022518955412"></p>
<p id="rds_02_0008__p12042810516">For details about instance classes, see section <a href="rds_01_0029.html">DB Instance Classes</a>.</p>
<p id="rds_02_0008__p19542517536">After a DB instance is created, you can change its instance class. For details, see section <a href="en-us_topic_scale_rds.html">Changing a DB Instance Class</a>.</p>
</td>
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<tr id="rds_02_0008__row4887142410214"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p108081627182118">Storage Space</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_02_0008__p1724017955414">Contains the file system overhead required for inode, reserved block, and database operation.</p>
<p id="rds_02_0008__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see section <a href="en-us_topic_scale_cluster.html">Scaling up Storage Space</a>.</p>
<p id="rds_02_0008__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see section <a href="en-us_topic_scale_cluster.html">Scaling Up Storage Space</a>.</p>
</td>
</tr>
<tr id="rds_02_0008__row2240794541"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p78026222713">Enable autoscaling</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><div class="p" id="rds_02_0008__p8346104231116">If the storage type is cloud SSD or extreme SSD, you can enable storage autoscaling. When the available storage drops to a specified threshold, autoscaling is triggered.<ul id="rds_02_0008__ul17346742141119"><li id="rds_02_0008__li63451142141114"><strong id="rds_02_0008__b14504104319516">Enable autoscaling</strong>: If you select this option, autoscaling is enabled.</li><li id="rds_02_0008__li6345184211110"><strong id="rds_02_0008__b135949501267">Trigger If Available Storage Drops To</strong>: If the available storage drops to a specified threshold or 10 GB, autoscaling is triggered.</li><li id="rds_02_0008__li20346154219113"><strong id="rds_02_0008__b6608921786">Autoscaling Limit</strong>: The default value range is from 40 GB to 4,000 GB. The limit must be no less than the storage of the DB instance.</li></ul>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><div class="p" id="rds_02_0008__p8346104231116">You can enable storage autoscaling. When the available storage drops to a specified threshold, autoscaling is triggered.<ul id="rds_02_0008__ul17346742141119"><li id="rds_02_0008__li63451142141114"><strong id="rds_02_0008__b14504104319516">Enable autoscaling</strong>: If you select this option, autoscaling is enabled.</li><li id="rds_02_0008__li6345184211110"><strong id="rds_02_0008__b135949501267">Trigger If Available Storage Drops To</strong>: If the available storage drops to a specified threshold or 10 GB, autoscaling is triggered.</li><li id="rds_02_0008__li20346154219113"><strong id="rds_02_0008__b6608921786">Autoscaling Limit</strong>: The default value range is from 40 GB to 4,000 GB. The limit must be no less than the storage of the DB instance.</li></ul>
</div>
<div class="note" id="rds_02_0008__note167221857132714"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="rds_02_0008__p030615462217">If you specify a read replica when creating a primary DB instance and enable storage autoscaling for the primary DB instance, storage autoscaling is also enabled for the read replica by default.</p>
</div></div>
</td>
</tr>
<tr id="rds_02_0008__row57834420116"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p957810411419">IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_02_0008__p1479043414912">This parameter is required when the storage type is <strong id="rds_02_0008__b59745445916">Flexible SSD</strong>.</p>
<p id="rds_02_0008__p164560229108">The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</td>
</tr>
<tr id="rds_02_0008__row5315114419110"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p1398311411817">Throughput</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_02_0008__p33333381693">This parameter is required when the storage type is <strong id="rds_02_0008__b1080524813911">Flexible SSD</strong>.</p>
<p id="rds_02_0008__p2407414152616">The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</td>
</tr>
<tr id="rds_02_0008__row15240109205415"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_02_0008__p1624014905414">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_02_0008__p124855615294">Enabling disk encryption enhances data security but reduces the database's read and write performance by 5%.</p>

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@ -25,12 +25,12 @@
</tr>
<tr id="rds_02_0016__row2331133912911"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0016__p1331339598">&lt;<em id="rds_02_0016__i1463194141011">host</em>&gt;</p>
</td>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0016__p6331123917911">Indicates the IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol9192714164019"><b>Overview</b></span> page of the DB instance. If the DB instance is accessed through the <span id="rds_02_0016__text15714121812309">ECS</span>, the IP address can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol1415113713312"><b>Floating IP Address</b></span> field in the <span class="uicontrol" id="rds_02_0016__uicontrol1339174251714"><b>Connectivity</b></span> area.</p>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0016__p6331123917911">Indicates the IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol333041703111"><b>Summary</b></span> page of the DB instance. If the DB instance is accessed through the <span id="rds_02_0016__text15714121812309">ECS</span>, the IP address can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol1415113713312"><b>Floating IP Address</b></span> field in the <span class="uicontrol" id="rds_02_0016__uicontrol1339174251714"><b>Connectivity</b></span> area.</p>
</td>
</tr>
<tr id="rds_02_0016__row1333115398920"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0016__p9331143910914">&lt;<em id="rds_02_0016__i13981145351015">port</em>&gt;</p>
</td>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0016__p1533111391295">Indicates the database port in use. The default value is <strong id="rds_02_0016__b851085514431">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol19161203321320"><b>Overview</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol3512255124310"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0016__uicontrol205131555164311"><b>Connectivity</b></span> area.</p>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0016__p1533111391295">Indicates the database port in use. The default value is <strong id="rds_02_0016__b851085514431">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol1248232119312"><b>Summary</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol3512255124310"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0016__uicontrol205131555164311"><b>Connectivity</b></span> area.</p>
</td>
</tr>
<tr id="rds_02_0016__row1933283919915"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0016__p143321139694">&lt;<em id="rds_02_0016__i520061671117">datastore</em>&gt;</p>
@ -47,7 +47,7 @@
<pre class="codeblock" id="rds_02_0016__codeblock480614105588"><strong id="rds_02_0016__b18071910105817">psql --no-readline -U root -h 192.168.0.44 -p 5432 -d postgres -W</strong></pre>
</p></li></ol>
</div>
<div class="section" id="rds_02_0016__section836277162054"><h4 class="sectiontitle"><span class="keyword" id="rds_02_0016__keyword182851565306">SSL Connection</span></h4><ol id="rds_02_0016__oe949fbf25aff40c1ad987a049746f625"><li id="rds_02_0016__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0016__li146168481712"><span>Click <span><img id="rds_02_0016__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0016__li96167481711"><span>Click <strong id="rds_02_0016__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0016__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0016__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0016__l322c3bcd0cc14ab28e1f842ca865d487"><span>On the <strong id="rds_02_0016__b209887715500">Instances</strong> page, click the target DB instance. In the <span class="uicontrol" id="rds_02_0016__uicontrol573017864212"><b>Basic Information</b></span> area on the <span class="uicontrol" id="rds_02_0016__uicontrol154781412161412"><b>Overview</b></span> page, click <strong id="rds_02_0016__b79964467716">Download</strong> in the <strong id="rds_02_0016__b1473338154218">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="rds_02_0016__lfea66b0cbae8423fb43ae6adfa8804dd"><span>Upload the root certificate to the <span id="rds_02_0016__text0853830183017">ECS</span> or save it to the device to be connected to the DB instance.</span><p><p id="rds_02_0016__p123399553444">For details about how to import the root certificate to the Linux OS on the <span id="rds_02_0016__text57606246557">ECS</span>, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
<div class="section" id="rds_02_0016__section836277162054"><h4 class="sectiontitle"><span class="keyword" id="rds_02_0016__keyword182851565306">SSL Connection</span></h4><ol id="rds_02_0016__oe949fbf25aff40c1ad987a049746f625"><li id="rds_02_0016__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0016__li146168481712"><span>Click <span><img id="rds_02_0016__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0016__li96167481711"><span>Click <strong id="rds_02_0016__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0016__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0016__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0016__en-us_topic_0154555358_li2033132135913"><span>On the <span class="uicontrol" id="rds_02_0016__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. Click <strong id="rds_02_0016__b91941325204717">Download</strong> under <strong id="rds_02_0016__b7321729184510">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</span></li><li id="rds_02_0016__lfea66b0cbae8423fb43ae6adfa8804dd"><span>Upload the root certificate to the <span id="rds_02_0016__text0853830183017">ECS</span> or save it to the device to be connected to the DB instance.</span><p><p id="rds_02_0016__p123399553444">For details about how to import the root certificate to the Linux OS on the <span id="rds_02_0016__text57606246557">ECS</span>, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
</p></li><li id="rds_02_0016__l9181e1cf94d242afa93a2f4eb25f9311"><span>Connect to an <span id="rds_02_0016__text4171181582819">RDS</span> DB instance. The Linux OS is used as an example.</span><p><pre class="codeblock" id="rds_02_0016__codeblock35695258586"><strong id="rds_02_0016__b12571102555811">psql --no-readline -h </strong><em id="rds_02_0016__i15711525175814">&lt;host&gt;</em><strong id="rds_02_0016__b85717258581"> -p</strong><em id="rds_02_0016__i1457182520585"> &lt;port&gt;</em><strong id="rds_02_0016__b135718251588"> "dbname=</strong><em id="rds_02_0016__i1257152545812">&lt;database&gt; </em><strong id="rds_02_0016__b457112520584">user=</strong><em id="rds_02_0016__i18572112575816">&lt;user&gt; </em><strong id="rds_02_0016__b857242575810">sslmode=verify-ca sslrootcert=</strong><em id="rds_02_0016__i457292555815">&lt;ca-file-directory&gt;</em><strong id="rds_02_0016__b95721525195812">"</strong></pre>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_02_0016__table518415566128" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="rds_02_0016__row151851356191216"><th align="left" class="cellrowborder" valign="top" width="20.44%" id="mcps1.3.4.2.6.2.2.2.3.1.1"><p id="rds_02_0016__p0185456141212"><strong id="rds_02_0016__b174721259164412">Parameter</strong></p>
@ -58,12 +58,12 @@
</thead>
<tbody><tr id="rds_02_0016__row11185195613125"><td class="cellrowborder" valign="top" width="20.44%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0016__p1918545617124"><em id="rds_02_0016__i14948141810139">&lt;host&gt;</em></p>
</td>
<td class="cellrowborder" valign="top" width="79.56%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0016__p1397112301139">IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol619851291519"><b>Overview</b></span> page of the DB instance. If the DB instance is accessed through the <span id="rds_02_0016__text6138113932411">ECS</span>, the IP address can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol81382039192410"><b>Floating IP Address</b></span> field in the <strong id="rds_02_0016__b151391395245">Connectivity</strong> area.</p>
<td class="cellrowborder" valign="top" width="79.56%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0016__p1397112301139">IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol20293165618381"><b>Summary</b></span> page of the DB instance. If the DB instance is accessed through the <span id="rds_02_0016__text6138113932411">ECS</span>, the IP address can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol81382039192410"><b>Floating IP Address</b></span> field in the <strong id="rds_02_0016__b151391395245">Connectivity</strong> area.</p>
</td>
</tr>
<tr id="rds_02_0016__row17185135615123"><td class="cellrowborder" valign="top" width="20.44%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0016__p318516569128"><em id="rds_02_0016__i1837210367132">&lt;port&gt;</em></p>
</td>
<td class="cellrowborder" valign="top" width="79.56%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0016__p18185115611217">Database port in use. The default value is <strong id="rds_02_0016__b4416415114518">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol421616367154"><b>Overview</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol74186159453"><b>Database Port</b></span> field in the <strong id="rds_02_0016__b88719506154">Connectivity</strong> area.</p>
<td class="cellrowborder" valign="top" width="79.56%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0016__p18185115611217">Database port in use. The default value is <strong id="rds_02_0016__b4416415114518">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0016__uicontrol2435743818"><b>Summary</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0016__uicontrol74186159453"><b>Database Port</b></span> field in the <strong id="rds_02_0016__b88719506154">Connectivity</strong> area.</p>
</td>
</tr>
<tr id="rds_02_0016__row15185155621219"><td class="cellrowborder" valign="top" width="20.44%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0016__p1418511561126"><em id="rds_02_0016__i166765404131">&lt;database&gt;</em></p>

8
docs/rds/umn/rds_02_0047.html
View File

@ -30,7 +30,7 @@
</tr>
<tr id="rds_02_0047__row13345133120497"><td class="cellrowborder" valign="top" width="27.722772277227726%" headers="mcps1.3.3.2.3.2.2.2.3.1.1 "><p id="rds_02_0047__p18345123120494">Host</p>
</td>
<td class="cellrowborder" valign="top" width="72.27722772277228%" headers="mcps1.3.3.2.3.2.2.2.3.1.2 "><div class="p" id="rds_02_0047__p076620352501">Indicates the floating IP address of the DB instance to be connected. To view the floating IP address and port of the DB instance, perform the following steps:<ol type="a" id="rds_02_0047__ol2197921185015"><li id="rds_02_0047__li1619719218503">Log in to the <span id="rds_02_0047__text1055721813717">RDS</span> console.</li><li id="rds_02_0047__li1197182118505">Select the region in which the DB instance is located.</li><li id="rds_02_0047__li18198142125015">Click the target DB instance to enter the <strong id="rds_02_0047__b6905152219314">Overview</strong> page.</li><li id="rds_02_0047__li14198142155010">In the navigation pane on the left, choose <strong id="rds_02_0047__b41039399427">Connectivity &amp; Security</strong>. In the <strong id="rds_02_0047__b01041739154214">Connection Information</strong> area, view the floating IP address.</li></ol>
<td class="cellrowborder" valign="top" width="72.27722772277228%" headers="mcps1.3.3.2.3.2.2.2.3.1.2 "><div class="p" id="rds_02_0047__p076620352501">Indicates the floating IP address of the DB instance to be connected. To view the floating IP address and port of the DB instance, perform the following steps:<ol type="a" id="rds_02_0047__ol2197921185015"><li id="rds_02_0047__li1619719218503">Log in to the <span id="rds_02_0047__text1055721813717">RDS</span> console.</li><li id="rds_02_0047__li1197182118505">Select the region in which the DB instance is located.</li><li id="rds_02_0047__li18198142125015">Click the target DB instance to enter the <strong id="rds_02_0047__b168173174307">Summary</strong> page.</li><li id="rds_02_0047__li14198142155010">In the navigation pane on the left, choose <strong id="rds_02_0047__b41039399427">Connectivity &amp; Security</strong>. In the <strong id="rds_02_0047__b01041739154214">Connection Information</strong> area, view the floating IP address.</li></ol>
</div>
</td>
</tr>
@ -57,7 +57,7 @@
</div></div>
</p></li></ol>
</div>
<div class="section" id="rds_02_0047__section09675811156"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_02_0047__ol155871645114112"><li id="rds_02_0047__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0047__li146168481712"><span>Click <span><img id="rds_02_0047__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0047__li96167481711"><span>Click <strong id="rds_02_0047__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0047__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0047__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0047__li2033132135913"><span>On the <span class="uicontrol" id="rds_02_0047__uff37fc472c13487a9736e639d74db007"><b>Instances</b></span> page, click the target DB instance. In the <strong id="rds_02_0047__b187171743261">Basic Information</strong> area on the <strong id="rds_02_0047__b175261916372">Overview</strong> page, click <strong id="rds_02_0047__b79964467716">Download</strong> in the <strong id="rds_02_0047__b19463123262315">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="rds_02_0047__li5906798167"><span>Import the root certificate to the Linux OS on the <span id="rds_02_0047__text11595151132">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></span><p><div class="note" id="rds_02_0047__n64dd4fdca8bb4a01adaca7e1d3d0d7b1"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_02_0047__ufe68f18ecce4425ea23c3c7a7130ef08"><li id="rds_02_0047__li11997201048">Since April 2017, RDS has offered a new root certificate that has a 20-year validation period. The new certificate takes effect after DB instances are rebooted. Replace the old certificate before it expires to improve system security.<p id="rds_02_0047__p122862915410"><a name="rds_02_0047__li11997201048"></a><a name="li11997201048"></a></p>
<div class="section" id="rds_02_0047__section09675811156"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_02_0047__ol155871645114112"><li id="rds_02_0047__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0047__li146168481712"><span>Click <span><img id="rds_02_0047__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0047__li96167481711"><span>Click <strong id="rds_02_0047__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0047__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0047__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0047__li2033132135913"><span>On the <span class="uicontrol" id="rds_02_0047__uff37fc472c13487a9736e639d74db007"><b>Instances</b></span> page, click the target DB instance. Click <strong id="rds_02_0047__b79964467716">Download</strong> under <strong id="rds_02_0047__b19463123262315">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</span></li><li id="rds_02_0047__li5906798167"><span>Import the root certificate to the Linux OS on the <span id="rds_02_0047__text11595151132">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></span><p><div class="note" id="rds_02_0047__n64dd4fdca8bb4a01adaca7e1d3d0d7b1"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_02_0047__ufe68f18ecce4425ea23c3c7a7130ef08"><li id="rds_02_0047__li11997201048">Since April 2017, RDS has offered a new root certificate that has a 20-year validation period. The new certificate takes effect after DB instances are rebooted. Replace the old certificate before it expires to improve system security.<p id="rds_02_0047__p122862915410"><a name="rds_02_0047__li11997201048"></a><a name="li11997201048"></a></p>
<p id="rds_02_0047__p1861192114412"></p>
<p id="rds_02_0047__p201271427184420">For details, see section <a href="rds_faq_0051.html">How Can I Identify the Validity Period of an SSL Root Certificate?</a></p>
</li><li id="rds_02_0047__lb4018560df604b6099bbff9f1f5c3d79">You can also download the certificate bundle, which contains both the new certificate provided since April 2017 and the old certificate.</li></ul>
@ -72,12 +72,12 @@
</thead>
<tbody><tr id="rds_02_0047__row128591243133311"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0047__p128591843133314">&lt;<em id="rds_02_0047__i11472201511342">host</em>&gt;</p>
</td>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0047__p78592436337">Floating IP address. To obtain this parameter, go to the <strong id="rds_02_0047__b106962591490">Overview</strong> page of the DB instance. In the navigation pane on the left, choose <strong id="rds_02_0047__b16345134415145">Connectivity &amp; Security</strong>. View the floating IP address in the <strong id="rds_02_0047__b193451344201415">Connection Information</strong> area,</p>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0047__p78592436337">Floating IP address. To obtain this parameter, go to the <strong id="rds_02_0047__b6880719183016">Summary</strong> page of the DB instance. In the navigation pane on the left, choose <strong id="rds_02_0047__b16345134415145">Connectivity &amp; Security</strong>. View the floating IP address in the <strong id="rds_02_0047__b193451344201415">Connection Information</strong> area,</p>
</td>
</tr>
<tr id="rds_02_0047__row885918436335"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0047__p1985934313335"><em id="rds_02_0047__i148916198347">&lt;port&gt;</em></p>
</td>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0047__p6859104373314">Database port. By default, the value is <strong id="rds_02_0047__b372029376135817">3306</strong>. To obtain this parameter, go to the <strong id="rds_02_0047__b88717342106">Overview</strong> page of the DB instance. In the navigation pane on the left, choose <strong id="rds_02_0047__b673175841510">Connectivity &amp; Security</strong>. View the database port in the <strong id="rds_02_0047__b20377312162">Connection Information</strong> area.</p>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0047__p6859104373314">Database port. By default, the value is <strong id="rds_02_0047__b372029376135817">3306</strong>. To obtain this parameter, go to the <strong id="rds_02_0047__b217132112305">Summary</strong> page of the DB instance. In the navigation pane on the left, choose <strong id="rds_02_0047__b673175841510">Connectivity &amp; Security</strong>. View the database port in the <strong id="rds_02_0047__b20377312162">Connection Information</strong> area.</p>
</td>
</tr>
<tr id="rds_02_0047__row14859174318331"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0047__p20859184323316">&lt;<em id="rds_02_0047__i1310372463412">userName</em>&gt;</p>

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@ -24,12 +24,12 @@
</tr>
<tr id="rds_02_0051__row2331133912911"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0051__p1331339598">&lt;<em id="rds_02_0051__i1463194141011">host</em>&gt;</p>
</td>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0051__p6331123917911">Indicates the IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol9192714164019"><b>Overview</b></span> page of the DB instance. The IP address can be found on the <span class="uicontrol" id="rds_02_0051__uicontrol6598143125116"><b><span id="rds_02_0051__text42741422163512">EIP</span>s</b></span> page.</p>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0051__p6331123917911">Indicates the IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol46791933359"><b>Summary</b></span> page of the DB instance. The IP address can be found on the <span class="uicontrol" id="rds_02_0051__uicontrol6598143125116"><b><span id="rds_02_0051__text42741422163512">EIP</span>s</b></span> page.</p>
</td>
</tr>
<tr id="rds_02_0051__row1333115398920"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0051__p9331143910914">&lt;<em id="rds_02_0051__i13981145351015">port</em>&gt;</p>
</td>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0051__p1533111391295">Indicates the database port in use. The default value is <strong id="rds_02_0051__b265814824516">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol1221619175173"><b>Overview</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0051__uicontrol36591848104517"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0051__uicontrol205131555164311"><b>Connectivity</b></span> area.</p>
<td class="cellrowborder" valign="top" width="70.62%" headers="mcps1.3.3.2.2.2.2.2.3.1.2 "><p id="rds_02_0051__p1533111391295">Indicates the database port in use. The default value is <strong id="rds_02_0051__b265814824516">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol11992134103520"><b>Summary</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0051__uicontrol36591848104517"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0051__uicontrol205131555164311"><b>Connectivity</b></span> area.</p>
</td>
</tr>
<tr id="rds_02_0051__row1933283919915"><td class="cellrowborder" valign="top" width="29.38%" headers="mcps1.3.3.2.2.2.2.2.3.1.1 "><p id="rds_02_0051__p143321139694">&lt;<em id="rds_02_0051__i520061671117">datastore</em>&gt;</p>
@ -46,7 +46,7 @@
<pre class="codeblock" id="rds_02_0051__codeblock16992720590"><strong id="rds_02_0051__b107006795911">psql --no-readline -U root -h 192.168.0.44 -p 5432 -d postgres -W</strong></pre>
</p></li></ol>
</div>
<div class="section" id="rds_02_0051__en-us_topic_0192953574_section836277162054"><h4 class="sectiontitle"><span class="keyword" id="rds_02_0051__keyword182851565306">SSL Connection</span></h4><ol id="rds_02_0051__en-us_topic_0192953574_oe949fbf25aff40c1ad987a049746f625"><li id="rds_02_0051__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0051__li146168481712"><span>Click <span><img id="rds_02_0051__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0051__li96167481711"><span>Click <strong id="rds_02_0051__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0051__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0051__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0051__en-us_topic_0192953574_l322c3bcd0cc14ab28e1f842ca865d487"><span>On the <strong id="rds_02_0051__b9710163333018">Instances</strong> page, click the target DB instance. In the <span class="uicontrol" id="rds_02_0051__en-us_topic_0192953574_uicontrol573017864212"><b>Basic Information</b></span> area on the <span class="uicontrol" id="rds_02_0051__uicontrol1652815510194"><b>Overview</b></span> page, click <strong id="rds_02_0051__b79964467716">Download</strong> in the <strong id="rds_02_0051__en-us_topic_0192953574_b1473338154218">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="rds_02_0051__en-us_topic_0192953574_lfea66b0cbae8423fb43ae6adfa8804dd"><span>Upload the root certificate to the <span id="rds_02_0051__text9713197144814">ECS</span> or save it to the device to be connected to the DB instance.</span><p><p id="rds_02_0051__p16391211164514">For details about how to import the root certificate to the Linux OS on the <span id="rds_02_0051__text17871544183519">ECS</span>, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
<div class="section" id="rds_02_0051__en-us_topic_0192953574_section836277162054"><h4 class="sectiontitle"><span class="keyword" id="rds_02_0051__keyword182851565306">SSL Connection</span></h4><ol id="rds_02_0051__en-us_topic_0192953574_oe949fbf25aff40c1ad987a049746f625"><li id="rds_02_0051__li17616348171"><span>Log in to the management console.</span></li><li id="rds_02_0051__li146168481712"><span>Click <span><img id="rds_02_0051__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_02_0051__li96167481711"><span>Click <strong id="rds_02_0051__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_02_0051__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_02_0051__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_02_0051__en-us_topic_0154555358_li2033132135913"><span>On the <span class="uicontrol" id="rds_02_0051__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. Click <strong id="rds_02_0051__b763574815475">Download</strong> under <strong id="rds_02_0051__b7321729184510">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</span></li><li id="rds_02_0051__en-us_topic_0192953574_lfea66b0cbae8423fb43ae6adfa8804dd"><span>Upload the root certificate to the <span id="rds_02_0051__text9713197144814">ECS</span> or save it to the device to be connected to the DB instance.</span><p><p id="rds_02_0051__p16391211164514">For details about how to import the root certificate to the Linux OS on the <span id="rds_02_0051__text17871544183519">ECS</span>, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
</p></li><li id="rds_02_0051__en-us_topic_0192953574_l9181e1cf94d242afa93a2f4eb25f9311"><span>Connect to an <span id="rds_02_0051__text171841151103317">RDS</span> DB instance. The Linux OS is used as an example.</span><p><pre class="codeblock" id="rds_02_0051__codeblock24951714115911"><strong id="rds_02_0051__b2049811475916">psql --no-readline -h </strong><em id="rds_02_0051__i17498111414598">&lt;host&gt;</em><strong id="rds_02_0051__b14988140597"> -p</strong><em id="rds_02_0051__i204984148591"> &lt;port&gt;</em><strong id="rds_02_0051__b1049841425910"> "dbname=</strong><em id="rds_02_0051__i1749831410598">&lt;database&gt;</em><strong id="rds_02_0051__b14498111412591"> user=</strong><em id="rds_02_0051__i84981814195917">&lt;user&gt; </em><strong id="rds_02_0051__b3498181414599">sslmode=verify-ca sslrootcert=</strong><em id="rds_02_0051__i15498151418592">&lt;ca-file-directory&gt;</em><strong id="rds_02_0051__b449891475917">"</strong></pre>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_02_0051__table518415566128" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="rds_02_0051__row151851356191216"><th align="left" class="cellrowborder" valign="top" width="27%" id="mcps1.3.4.2.6.2.2.2.3.1.1"><p id="rds_02_0051__p0185456141212"><strong id="rds_02_0051__b155923258558">Parameter</strong></p>
@ -57,12 +57,12 @@
</thead>
<tbody><tr id="rds_02_0051__row11185195613125"><td class="cellrowborder" valign="top" width="27%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0051__p1918545617124"><em id="rds_02_0051__i14948141810139">&lt;host&gt;</em></p>
</td>
<td class="cellrowborder" valign="top" width="73%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0051__p19362123813218">IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol4918122313182"><b>Overview</b></span> page of the DB instance. The IP address can be found on the <span class="uicontrol" id="rds_02_0051__uicontrol16804112511572"><b><span id="rds_02_0051__text13798525155718">EIP</span>s</b></span> page.</p>
<td class="cellrowborder" valign="top" width="73%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0051__p19362123813218">IP address of the primary DB instance. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol18432181919356"><b>Summary</b></span> page of the DB instance. The IP address can be found on the <span class="uicontrol" id="rds_02_0051__uicontrol16804112511572"><b><span id="rds_02_0051__text13798525155718">EIP</span>s</b></span> page.</p>
</td>
</tr>
<tr id="rds_02_0051__row17185135615123"><td class="cellrowborder" valign="top" width="27%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0051__p318516569128"><em id="rds_02_0051__i1837210367132">&lt;port&gt;</em></p>
</td>
<td class="cellrowborder" valign="top" width="73%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0051__p18185115611217">Database port in use. The default value is <strong id="rds_02_0051__b1284293775511">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol1014672641817"><b>Overview</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0051__uicontrol484313795510"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0051__uicontrol67151316187"><b>Connectivity</b></span> area.</p>
<td class="cellrowborder" valign="top" width="73%" headers="mcps1.3.4.2.6.2.2.2.3.1.2 "><p id="rds_02_0051__p18185115611217">Database port in use. The default value is <strong id="rds_02_0051__b1284293775511">5432</strong>. To obtain this parameter, go to the <span class="uicontrol" id="rds_02_0051__uicontrol102081209355"><b>Summary</b></span> page of the DB instance. The port number can be found in the <span class="uicontrol" id="rds_02_0051__uicontrol484313795510"><b>Database Port</b></span> field in the <span class="uicontrol" id="rds_02_0051__uicontrol67151316187"><b>Connectivity</b></span> area.</p>
</td>
</tr>
<tr id="rds_02_0051__row15185155621219"><td class="cellrowborder" valign="top" width="27%" headers="mcps1.3.4.2.6.2.2.2.3.1.1 "><p id="rds_02_0051__p1418511561126"><em id="rds_02_0051__i166765404131">&lt;database&gt;</em></p>

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@ -10,17 +10,17 @@
</li></ol>
</div>
<div class="section" id="rds_03_0007__section8112152217539"><h4 class="sectiontitle">Non-SSL Connection</h4><ol id="rds_03_0007__ol6899121464513"><li id="rds_03_0007__li159041314144518"><span>Start SQL Server Management Studio.</span></li><li id="rds_03_0007__li18907114144515"><span>Choose <strong id="rds_03_0007__b832283413289">Connect</strong> &gt; <strong id="rds_03_0007__b193221134152810">Database Engine</strong>. In the displayed dialog box, enter login information.</span><p><div class="fignone" id="rds_03_0007__fig99151514124518"><span class="figcap"><b>Figure 1 </b>Connecting to the server</span><br><span><img id="rds_03_0007__image1891951419454" src="en-us_image_0000001191211449.png"></span></div>
<ul id="rds_03_0007__ul1691911434510"><li id="rds_03_0007__li10920181414513"><strong id="rds_03_0007__b146943475614">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0007__ul19922614154519"><li id="rds_03_0007__li1292441416452">The IP address is the EIP that has been bound to the DB instance.</li><li id="rds_03_0007__li79301714124511">The port is the database port in the <strong id="rds_03_0007__b185961654145811">Connectivity</strong> area on the <strong id="rds_03_0007__b42961941162010">Overview</strong> page of the DB instance.</li></ul>
<ul id="rds_03_0007__ul1691911434510"><li id="rds_03_0007__li10920181414513"><strong id="rds_03_0007__b146943475614">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0007__ul19922614154519"><li id="rds_03_0007__li1292441416452">The IP address is the EIP that has been bound to the DB instance.</li><li id="rds_03_0007__li79301714124511">The port is the database port in the <strong id="rds_03_0007__b185961654145811">Connectivity</strong> area on the <strong id="rds_03_0007__b56881638113518">Summary</strong> page of the DB instance.</li></ul>
</li><li id="rds_03_0007__li1093720142451"><strong id="rds_03_0007__b842352706112352">Authentication</strong>: indicates the authentication mode. Select <strong id="rds_03_0007__b842352706112627">SQL Server Authentication</strong>.</li><li id="rds_03_0007__li11939101464515"><strong id="rds_03_0007__b842352706212721">Login</strong>: indicates the RDS database username. The default administrator is <strong id="rds_03_0007__b1158023303104748">rdsuser</strong>.</li><li id="rds_03_0007__li1794101416457"><strong id="rds_03_0007__b842352706171010">Password</strong>: indicates the password of the RDS database username.</li></ul>
</p></li><li id="rds_03_0007__li139521614134510"><span>Click <strong id="rds_03_0007__b842352706112844">Connect</strong> to connect to the DB instance.</span><p><div class="note" id="rds_03_0007__note1536635324218"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_03_0007__p14465173181314">If the connection fails, ensure that preparations have been correctly made in <a href="#rds_03_0007__section367520762117">Preparations</a> and try again.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="rds_03_0007__section335618164205"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_03_0007__ol9899222162618"><li id="rds_03_0007__li1519225152811"><span>Download the SSL root certificate and then upload it.</span><p><ol type="a" id="rds_03_0007__ol2176152722817"><li id="rds_03_0007__li148993221263">In the <span class="uicontrol" id="rds_03_0007__uicontrol1473416716"><b>Basic Information</b></span> area on the <strong id="rds_03_0007__b0737134513236">Overview</strong> page, click <strong id="rds_03_0007__b5303154213247">Download</strong> in the <strong id="rds_03_0007__b54749120711">SSL</strong> field to download the root certificate or certificate bundle.</li><li id="rds_03_0007__li289920228268">Upload the root certificate to the <span id="rds_03_0007__text1217121616487">ECS</span> to be connected to the DB instance.</li><li id="rds_03_0007__li5899192272610">Import the root certificate to the Windows OS on the <span id="rds_03_0007__text4496175673217">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a><div class="note" id="rds_03_0007__note55991119113412"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_03_0007__ul10599151913349"><li id="rds_03_0007__li10599121918349">Replace the old certificate before it expires to improve system security.</li><li id="rds_03_0007__li2599119163419">After you bind an EIP to a DB instance, you must reboot the instance for the SSL connection to take effect.</li></ul>
<div class="section" id="rds_03_0007__section335618164205"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_03_0007__ol9899222162618"><li id="rds_03_0007__li1519225152811"><span>Download the SSL root certificate and then upload it.</span><p><ol type="a" id="rds_03_0007__ol2176152722817"><li id="rds_03_0007__en-us_topic_0154555358_li2033132135913">On the <span class="uicontrol" id="rds_03_0007__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. Click <strong id="rds_03_0007__b79964467716">Download</strong> under <strong id="rds_03_0007__b7321729184510">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</li><li id="rds_03_0007__li289920228268">Upload the root certificate to the <span id="rds_03_0007__text1217121616487">ECS</span> to be connected to the DB instance.</li><li id="rds_03_0007__li5899192272610">Import the root certificate to the Windows OS on the <span id="rds_03_0007__text4496175673217">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a><div class="note" id="rds_03_0007__note55991119113412"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_03_0007__ul10599151913349"><li id="rds_03_0007__li10599121918349">Replace the old certificate before it expires to improve system security.</li><li id="rds_03_0007__li2599119163419">After you bind an EIP to a DB instance, you must reboot the instance for the SSL connection to take effect.</li></ul>
</div></div>
</li></ol>
</p></li><li id="rds_03_0007__li12841133311271"><span>Start SQL Server Management Studio.</span></li><li id="rds_03_0007__li188418335274"><span>Choose <strong id="rds_03_0007__b14381622102811">Connect</strong> &gt; <strong id="rds_03_0007__b4438152282814">Database Engine</strong>. In the displayed dialog box, enter login information.</span><p><div class="fignone" id="rds_03_0007__fig1884118334272"><span class="figcap"><b>Figure 2 </b>Connecting to the server</span><br><span><img id="rds_03_0007__image12841133122712" src="en-us_image_0000001145051612.png"></span></div>
<ul id="rds_03_0007__ul18858113362710"><li id="rds_03_0007__li14858123317270"><strong id="rds_03_0007__b1229182319114">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0007__ul15858933192717"><li id="rds_03_0007__li685818331274">The IP address is the EIP that has been bound to the DB instance.</li><li id="rds_03_0007__li18581033152717">The port is the database port in the <strong id="rds_03_0007__b1785833317252">Connectivity</strong> area on the <strong id="rds_03_0007__b15213017252">Overview</strong> page of the DB instance.</li></ul>
<ul id="rds_03_0007__ul18858113362710"><li id="rds_03_0007__li14858123317270"><strong id="rds_03_0007__b1229182319114">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0007__ul15858933192717"><li id="rds_03_0007__li685818331274">The IP address is the EIP that has been bound to the DB instance.</li><li id="rds_03_0007__li18581033152717">The port is the database port in the <strong id="rds_03_0007__b1785833317252">Connectivity</strong> area on the <strong id="rds_03_0007__b1788864123520">Summary</strong> page of the DB instance.</li></ul>
</li><li id="rds_03_0007__li148585337279"><strong id="rds_03_0007__b165752461115">Authentication</strong>: indicates the authentication mode. Select <strong id="rds_03_0007__b057714612113">SQL Server Authentication</strong>.</li><li id="rds_03_0007__li1385883315279"><strong id="rds_03_0007__b162891440">Login</strong>: indicates the RDS database username. The default administrator is <strong id="rds_03_0007__b1636886129">rdsuser</strong>.</li><li id="rds_03_0007__li20874173372710"><strong id="rds_03_0007__b1365580043">Password</strong>: indicates the password of the RDS database username.</li></ul>
</p></li><li id="rds_03_0007__li47772152307"><span>On the <strong id="rds_03_0007__b71488248218">Connection Properties</strong> page, enter related parameters and select <strong id="rds_03_0007__b1374924918217">Encrypt connection</strong> to enable SSL encryption. (By default, <strong id="rds_03_0007__b8687133311318">Encrypt connection</strong> is not selected. You need to select it manually.)</span><p><div class="fignone" id="rds_03_0007__fig2077710158306"><span class="figcap"><b>Figure 3 </b>Connection properties</span><br><span><img id="rds_03_0007__image207770150305" src="en-us_image_0000001145051614.jpg"></span></div>
</p></li><li id="rds_03_0007__li987483316278"><span>Click <strong id="rds_03_0007__b228212764">Connect</strong> to connect to the DB instance.</span><p><div class="note" id="rds_03_0007__note187416330276"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_03_0007__p3874153342711">If the connection fails, ensure that preparations have been correctly made in <a href="#rds_03_0007__section367520762117">Preparations</a> and try again.</p>

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<tr id="rds_03_0011__row1015338917"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="rds_03_0011__p3335747191620">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="79%" headers="mcps1.3.4.2.5.2.2.2.3.1.2 "><p id="rds_03_0011__p19221645726">Determines the DB instance read/write speed. The higher the maximum throughput is, the higher the DB instance read/write speed can be.</p>
<ul id="rds_03_0011__ul1292212451520"><li id="rds_03_0011__li189226451523"><strong id="rds_03_0011__b292214454215">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_03_0011__li292214451324"><strong id="rds_03_0011__b199221045621">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li></ul>
<ul id="rds_03_0011__ul1292212451520"><li id="rds_03_0011__li189226451523"><strong id="rds_03_0011__b292214454215">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_03_0011__li292214451324"><strong id="rds_03_0011__b199221045621">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li><li id="rds_03_0011__li89539591842"><strong id="rds_03_0011__b5120123168">Flexible SSD</strong>: decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</li></ul>
</td>
</tr>
<tr id="rds_03_0011__row986226171118"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.2.5.2.2.2.3.1.1 "><p id="rds_03_0011__p5363100191215">AZ</p>
@ -73,6 +73,18 @@
<p id="rds_03_0011__p5480144445014">By default, storage space of a read replica is the same as that of the primary DB instance.</p>
</td>
</tr>
<tr id="rds_03_0011__row1688123815143"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.2.5.2.3.2.3.1.1 "><p id="rds_03_0011__p957810411419">IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="79%" headers="mcps1.3.4.2.5.2.3.2.3.1.2 "><p id="rds_03_0011__p1479043414912">This parameter is required when the storage type is <strong id="rds_03_0011__b59745445916">Flexible SSD</strong>.</p>
<p id="rds_03_0011__p164560229108">The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</td>
</tr>
<tr id="rds_03_0011__row69131337141416"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.2.5.2.3.2.3.1.1 "><p id="rds_03_0011__p1398311411817">Throughput</p>
</td>
<td class="cellrowborder" valign="top" width="79%" headers="mcps1.3.4.2.5.2.3.2.3.1.2 "><p id="rds_03_0011__p33333381693">This parameter is required when the storage type is <strong id="rds_03_0011__b1080524813911">Flexible SSD</strong>.</p>
<p id="rds_03_0011__p2407414152616">The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</td>
</tr>
<tr id="rds_03_0011__row1745919202459"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.2.5.2.3.2.3.1.1 "><p id="rds_03_0011__p595744141914">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="79%" headers="mcps1.3.4.2.5.2.3.2.3.1.2 "><p id="rds_03_0011__p124855615294">Enabling disk encryption enhances data security but reduces the database's read and write performance by 5%.</p>

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</li></ol>
</div>
<div class="section" id="rds_03_0013__section856417141010"><h4 class="sectiontitle">Non-SSL Connection</h4><ol id="rds_03_0013__ol15778193119498"><li id="rds_03_0013__li20778143117491"><span>Log in to the <span id="rds_03_0013__text33297329457">ECS</span> or device that can access RDS.</span></li><li id="rds_03_0013__li17794103114914"><span>Start SQL Server Management Studio.</span></li><li id="rds_03_0013__li279412319493"><span>Choose <strong id="rds_03_0013__b1721412350249">Connect</strong> &gt; <strong id="rds_03_0013__b18152338182415">Database Engine</strong>. In the displayed dialog box, enter login information.</span><p><div class="fignone" id="rds_03_0013__fig15808171610311"><span class="figcap"><b>Figure 1 </b>Connecting to the server</span><br><span><img id="rds_03_0013__image128083161036" src="en-us_image_0000001191131309.png"></span></div>
<ul id="rds_03_0013__ul67941931174915"><li id="rds_03_0013__li10531101513548"><strong id="rds_03_0013__b375275221212">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0013__ul1284022734712"><li id="rds_03_0013__li15843192734710">The IP address is the floating IP address in the <strong id="rds_03_0013__b12454642115">Connectivity</strong> area on the <strong id="rds_03_0013__b42961941162010">Overview</strong> page of the DB instance.</li><li id="rds_03_0013__li1385017279477">The port is the database port in the <strong id="rds_03_0013__b202411113216">Connectivity</strong> area on the <strong id="rds_03_0013__b796254722018">Overview</strong> page of the DB instance.</li></ul>
<ul id="rds_03_0013__ul67941931174915"><li id="rds_03_0013__li10531101513548"><strong id="rds_03_0013__b375275221212">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0013__ul1284022734712"><li id="rds_03_0013__li15843192734710">The IP address is the floating IP address in the <strong id="rds_03_0013__b12454642115">Connectivity</strong> area on the <strong id="rds_03_0013__b2096062743511">Summary</strong> page of the DB instance.</li><li id="rds_03_0013__li1385017279477">The port is the database port in the <strong id="rds_03_0013__b202411113216">Connectivity</strong> area on the <strong id="rds_03_0013__b240929153510">Summary</strong> page of the DB instance.</li></ul>
</li><li id="rds_03_0013__li9809131164915"><strong id="rds_03_0013__b189724917142">Authentication</strong>: indicates the authentication mode. Select <strong id="rds_03_0013__b119919498146">SQL Server Authentication</strong>.</li><li id="rds_03_0013__li2809113134917"><strong id="rds_03_0013__b842352706212721">Login</strong>: indicates the RDS database username. The default administrator is <strong id="rds_03_0013__b1158023303104748">rdsuser</strong>.</li><li id="rds_03_0013__li880933115492"><strong id="rds_03_0013__b842352706171010">Password</strong>: indicates the password of the RDS database username.</li></ul>
</p></li><li id="rds_03_0013__li3809153184912"><span>Click <strong id="rds_03_0013__b842352706112844">Connect</strong> to connect to the DB instance.</span><p><div class="note" id="rds_03_0013__note1536635324218"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_03_0013__p14465173181314">If the connection fails, ensure that preparations have been correctly made in <a href="#rds_03_0013__section142821253295">Preparations</a> and try again.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="rds_03_0013__section664784744419"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_03_0013__ol9899222162618"><li id="rds_03_0013__li1519225152811"><span>Download the SSL root certificate and then upload it.</span><p><ol type="a" id="rds_03_0013__ol2176152722817"><li id="rds_03_0013__li148993221263">On the <strong id="rds_03_0013__b1791374052212">Instances</strong> page, click the target DB instance. In the <strong id="rds_03_0013__b11913840112219">Basic Information</strong> area on the <strong id="rds_03_0013__b1791324012210">Overview</strong> page, click <strong id="rds_03_0013__b149131040182210">Download</strong> in the <strong id="rds_03_0013__b17913134022217">SSL</strong>field to download the root certificate or certificate bundle.</li><li id="rds_03_0013__li289920228268">Upload the root certificate to the <span id="rds_03_0013__text4458445194514">ECS</span> or save it to the device to be connected to the DB instance.</li><li id="rds_03_0013__li5899192272610">Import the root certificate into the Windows OS on the <span id="rds_03_0013__text143571512459">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a><div class="note" id="rds_03_0013__note55991119113412"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_03_0013__ul10599151913349"><li id="rds_03_0013__li10599121918349">Replace the old certificate before it expires to improve system security.</li><li id="rds_03_0013__li2599119163419">After you bind an EIP to a DB instance, you must reboot the instance for the SSL connection to take effect.</li></ul>
<div class="section" id="rds_03_0013__section664784744419"><h4 class="sectiontitle">SSL Connection</h4><ol id="rds_03_0013__ol9899222162618"><li id="rds_03_0013__li1519225152811"><span>Download the SSL root certificate and then upload it.</span><p><ol type="a" id="rds_03_0013__ol2176152722817"><li id="rds_03_0013__en-us_topic_0154555358_li2033132135913">On the <span class="uicontrol" id="rds_03_0013__uicontrol78051637184115"><b>Instances</b></span> page, click the target DB instance. Click <strong id="rds_03_0013__b79964467716">Download</strong> under <strong id="rds_03_0013__b7321729184510">SSL</strong> to download the Certificate Download package, and extract the root certificate ca.pem and bundle ca-bundle.pem from the package.</li><li id="rds_03_0013__li289920228268">Upload the root certificate to the <span id="rds_03_0013__text4458445194514">ECS</span> or save it to the device to be connected to the DB instance.</li><li id="rds_03_0013__li5899192272610">Import the root certificate into the Windows OS on the <span id="rds_03_0013__text143571512459">ECS</span>. For details, see <a href="rds_faq_0052.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a><div class="note" id="rds_03_0013__note55991119113412"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_03_0013__ul10599151913349"><li id="rds_03_0013__li10599121918349">Replace the old certificate before it expires to improve system security.</li><li id="rds_03_0013__li2599119163419">After you bind an EIP to a DB instance, you must reboot the instance for the SSL connection to take effect.</li></ul>
</div></div>
</li></ol>
</p></li><li id="rds_03_0013__li12841133311271"><span>Start SQL Server Management Studio.</span></li><li id="rds_03_0013__li188418335274"><span>Choose <strong id="rds_03_0013__b559317135253">Connect</strong> &gt; <strong id="rds_03_0013__b359481314257">Database Engine</strong>. In the displayed dialog box, enter login information.</span><p><div class="fignone" id="rds_03_0013__fig1884118334272"><span class="figcap"><b>Figure 2 </b>Connecting to the server</span><br><span><img id="rds_03_0013__image12841133122712" src="en-us_image_0000001191211463.png"></span></div>
<ul id="rds_03_0013__ul18858113362710"><li id="rds_03_0013__li148585337279"><strong id="rds_03_0013__b18493839191613">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0013__ul11743433164610"><li id="rds_03_0013__li107431033114618">The IP address is the floating IP address in the <strong id="rds_03_0013__b2383192282216">Connectivity</strong> area on the <strong id="rds_03_0013__b54184122218">Overview</strong> page of the DB instance.</li><li id="rds_03_0013__li274313311464">The port is the database port in the <strong id="rds_03_0013__b11509182942220">Connectivity</strong> area on the <strong id="rds_03_0013__b92341343132218">Overview</strong> page of the DB instance.</li></ul>
<ul id="rds_03_0013__ul18858113362710"><li id="rds_03_0013__li148585337279"><strong id="rds_03_0013__b18493839191613">Server name</strong>: indicates the IP address and port of the DB instance. Use a comma (,) to separate them. For example: x.x.x.x,8080.<ul id="rds_03_0013__ul11743433164610"><li id="rds_03_0013__li107431033114618">The IP address is the floating IP address in the <strong id="rds_03_0013__b2383192282216">Connectivity</strong> area on the <strong id="rds_03_0013__b624883310357">Summary</strong> page of the DB instance.</li><li id="rds_03_0013__li274313311464">The port is the database port in the <strong id="rds_03_0013__b11509182942220">Connectivity</strong> area on the <strong id="rds_03_0013__b155218343353">Summary</strong> page of the DB instance.</li></ul>
</li><li id="rds_03_0013__li180617554465"><strong id="rds_03_0013__b842352706112352">Authentication</strong>: indicates the authentication mode. Select <strong id="rds_03_0013__b842352706112627">SQL Server Authentication</strong>.</li><li id="rds_03_0013__li1385883315279"><strong id="rds_03_0013__b551814951">Login</strong>: indicates the RDS database username. The default administrator is <strong id="rds_03_0013__b123647398">rdsuser</strong>.</li><li id="rds_03_0013__li20874173372710"><strong id="rds_03_0013__b1534313236">Password</strong>: indicates the password of the RDS database username.</li></ul>
</p></li><li id="rds_03_0013__li47772152307"><span>On the <strong id="rds_03_0013__b167574181713">Connection Properties</strong> page, enter related parameters and select <strong id="rds_03_0013__b1759111151720">Encrypt connection</strong> to enable SSL encryption. (By default, <strong id="rds_03_0013__b5759131121714">Encrypt connection</strong> is not selected. You need to select it manually.)</span><p><div class="fignone" id="rds_03_0013__fig2077710158306"><span class="figcap"><b>Figure 3 </b>Connection properties</span><br><span><img id="rds_03_0013__image207770150305" src="en-us_image_0000001191211461.jpg"></span></div>
</p></li><li id="rds_03_0013__li987483316278"><span>Click <strong id="rds_03_0013__b1860018918">Connect</strong> to connect to the DB instance.</span><p><div class="note" id="rds_03_0013__note187416330276"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_03_0013__p3874153342711">If the connection fails, ensure that preparations have been correctly made in <a href="#rds_03_0013__section142821253295">Preparations</a> and try again.</p>

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<tr id="rds_03_0065__row9623103913316"><td class="cellrowborder" valign="top" width="19.830000000000002%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_03_0065__p9688125593314">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="80.17%" headers="mcps1.3.2.2.5.2.2.2.3.1.2 "><p id="rds_03_0065__p9134111911423">Determines the DB instance read/write speed. The higher the maximum throughput is, the higher the DB instance read/write speed can be.</p>
<ul id="rds_03_0065__ul913441964211"><li id="rds_03_0065__li131357197425"><strong id="rds_03_0065__b9135619184218">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_03_0065__li4135319124214"><strong id="rds_03_0065__b9135161914216">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li></ul>
<ul id="rds_03_0065__ul913441964211"><li id="rds_03_0065__li131357197425"><strong id="rds_03_0065__b9135619184218">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_03_0065__li4135319124214"><strong id="rds_03_0065__b9135161914216">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li><li id="rds_03_0065__li89539591842"><strong id="rds_03_0065__b5120123168">Flexible SSD</strong>: decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</li></ul>
</td>
</tr>
<tr id="rds_03_0065__row1675018111332"><td class="cellrowborder" valign="top" width="19.830000000000002%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_03_0065__p112255955412">Primary AZ/Standby AZ</p>
@ -78,15 +78,27 @@
<tr id="rds_03_0065__row1467616204445"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_03_0065__p176763206449">Storage Space</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_03_0065__p12950023171218">Contains the file system overhead required for inode, reserved block, and database operation. Storage space can range in size from 40 GB to 4,000 GB and can be scaled up only by a multiple of 10 GB.</p>
<p id="rds_03_0065__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see <a href="rds_pg_scale_cluster.html">Scaling up Storage Space</a>.</p>
<p id="rds_03_0065__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see <a href="rds_pg_scale_cluster.html">Scaling Up Storage Space</a>.</p>
</td>
</tr>
<tr id="rds_03_0065__row122821257113112"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_03_0065__p78026222713">Enable autoscaling</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><div class="p" id="rds_03_0065__p15855172395212">If the storage type is cloud SSD or extreme SSD, you can enable storage autoscaling. When the available storage drops to a specified threshold, autoscaling is triggered.<ul id="rds_03_0065__ul168552237522"><li id="rds_03_0065__li4855112335216"><strong id="rds_03_0065__b17855142345212">Enable Storage Autoscaling</strong>: If you select this option, storage autoscaling is enabled.</li><li id="rds_03_0065__li10855102314528"><strong id="rds_03_0065__b18855192317528">Trigger If Available Storage Drops To</strong>: If the available storage drops to a specified threshold or 10 GB, autoscaling is triggered.</li><li id="rds_03_0065__li9855112335219"><strong id="rds_03_0065__b585502335218">Autoscaling Limit</strong>: The default value range is from 40 to 4000, in GB. The limit must be no less than the storage of the DB instance.</li></ul>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><div class="p" id="rds_03_0065__p15855172395212">You can enable storage autoscaling. When the available storage drops to a specified threshold, autoscaling is triggered.<ul id="rds_03_0065__ul168552237522"><li id="rds_03_0065__li4855112335216"><strong id="rds_03_0065__b17855142345212">Enable Storage Autoscaling</strong>: If you select this option, storage autoscaling is enabled.</li><li id="rds_03_0065__li10855102314528"><strong id="rds_03_0065__b18855192317528">Trigger If Available Storage Drops To</strong>: If the available storage drops to a specified threshold or 10 GB, autoscaling is triggered.</li><li id="rds_03_0065__li9855112335219"><strong id="rds_03_0065__b585502335218">Autoscaling Limit</strong>: The default value range is from 40 to 4000, in GB. The limit must be no less than the storage of the DB instance.</li></ul>
</div>
</td>
</tr>
<tr id="rds_03_0065__row1176017413128"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_03_0065__p957810411419">IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_03_0065__p1479043414912">This parameter is required when the storage type is <strong id="rds_03_0065__b59745445916">Flexible SSD</strong>.</p>
<p id="rds_03_0065__p164560229108">The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</td>
</tr>
<tr id="rds_03_0065__row72619520123"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_03_0065__p1398311411817">Throughput</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_03_0065__p33333381693">This parameter is required when the storage type is <strong id="rds_03_0065__b1080524813911">Flexible SSD</strong>.</p>
<p id="rds_03_0065__p2407414152616">The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</td>
</tr>
<tr id="rds_03_0065__row3377101065014"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_03_0065__p119341314506">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_03_0065__p124855615294">Enabling disk encryption enhances data security but reduces the database's read and write performance by 5%.</p>

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<h1 class="topictitle1">Downloading a Binlog Backup File</h1>
<div id="body8662426"><div class="section" id="rds_03_0100__en-us_topic_0192954021_sb7b1b629a51e4229a30150ae0d342811"><h4 class="sectiontitle">Scenarios</h4><p id="rds_03_0100__en-us_topic_0192954021_p162931211195417">RDS for MySQL allows you to download <span class="keyword" id="rds_03_0100__en-us_topic_0192954021_keyword1283015485152">binlog backup files</span> to your client computer and use them to restore DB instances if necessary. </p>
<div id="body8662426"><div class="section" id="rds_03_0100__en-us_topic_0192954021_sb7b1b629a51e4229a30150ae0d342811"><h4 class="sectiontitle">Scenarios</h4><p id="rds_03_0100__en-us_topic_0192954021_p162931211195417">RDS for MySQL allows you to download <span class="keyword" id="rds_03_0100__en-us_topic_0192954021_keyword1283015485152">binlog backup files</span> to your client computer and use them to restore DB instances if necessary. For details, see <a href="#rds_03_0100__en-us_topic_0192954021_section61116810348">Downloading a Binlog Backup File</a> or <a href="#rds_03_0100__section625243344717">Downloading a Merged Binlog</a>.</p>
</div>
<div class="section" id="rds_03_0100__en-us_topic_0192954021_section61116810348"><h4 class="sectiontitle">Downloading a Binlog Backup File</h4><ol id="rds_03_0100__en-us_topic_0192954021_ol199521352103413"><li id="rds_03_0100__li17616348171"><span>Log in to the management console.</span></li><li id="rds_03_0100__li146168481712"><span>Click <span><img id="rds_03_0100__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_03_0100__li96167481711"><span>Click <strong id="rds_03_0100__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_03_0100__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_03_0100__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_03_0100__li5792135119812"><span>On the <span class="uicontrol" id="rds_03_0100__uicontrol231818312313"><b>Instances</b></span> page, click the target DB instance. The <strong id="rds_03_0100__b621141215153">Overview</strong> page is displayed.</span></li><li id="rds_03_0100__en-us_topic_0192954021_li204011436173612"><span>In the navigation pane on the left, choose <strong id="rds_03_0100__b483521719206">Backups &amp; Restorations</strong>. On the <strong id="rds_03_0100__b2431536132016">Binlog Backups</strong> page, locate the target backup to be downloaded and click <strong id="rds_03_0100__b1651614395466">Download</strong> in the <strong id="rds_03_0100__b2562164517165">Operation</strong> column.</span><p><p id="rds_03_0100__en-us_topic_0192954021_p1163116442915">You can also select the binlog backups to be downloaded and click <strong id="rds_03_0100__en-us_topic_0192954021_b19840741773">Download</strong> above the list.</p>
<div class="section" id="rds_03_0100__en-us_topic_0192954021_section61116810348"><a name="rds_03_0100__en-us_topic_0192954021_section61116810348"></a><a name="en-us_topic_0192954021_section61116810348"></a><h4 class="sectiontitle">Downloading a Binlog Backup File</h4><ol id="rds_03_0100__en-us_topic_0192954021_ol199521352103413"><li id="rds_03_0100__li17616348171"><span>Log in to the management console.</span></li><li id="rds_03_0100__li146168481712"><span>Click <span><img id="rds_03_0100__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_03_0100__li96167481711"><span>Click <strong id="rds_03_0100__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_03_0100__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_03_0100__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_03_0100__li5792135119812"><span>On the <span class="uicontrol" id="rds_03_0100__uicontrol231818312313"><b>Instances</b></span> page, click the target DB instance. The <strong id="rds_03_0100__b61201451142213">Summary</strong> page is displayed.</span></li><li id="rds_03_0100__en-us_topic_0192954021_li204011436173612"><span>In the navigation pane on the left, choose <strong id="rds_03_0100__b483521719206">Backups &amp; Restorations</strong>. On the <strong id="rds_03_0100__b2431536132016">Binlog Backups</strong> page, locate the target backup to be downloaded and click <strong id="rds_03_0100__b1651614395466">Download</strong> in the <strong id="rds_03_0100__b2562164517165">Operation</strong> column.</span><p><p id="rds_03_0100__en-us_topic_0192954021_p1163116442915">You can also select the binlog backups to be downloaded and click <strong id="rds_03_0100__en-us_topic_0192954021_b19840741773">Download</strong> above the list.</p>
</p></li><li id="rds_03_0100__en-us_topic_0192954021_li10983155417113"><span>After the download is complete, you can view the binlog backups locally.</span></li></ol>
</div>
<div class="section" id="rds_03_0100__section625243344717"><a name="rds_03_0100__section625243344717"></a><a name="section625243344717"></a><h4 class="sectiontitle">Downloading a Merged Binlog</h4><ol id="rds_03_0100__en-us_topic_0192954021_ol55701624174316"><li id="rds_03_0100__li183141510124810"><span>Log in to the management console.</span></li><li id="rds_03_0100__li1631401024813"><span>Click <span><img id="rds_03_0100__rds_modify_instance_name_en-us_topic_0192953815_image192529212293_1" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_03_0100__li1431431084815"><span>Click <strong id="rds_03_0100__rds_modify_instance_name_b171171523153019_1">Service List</strong>. Under <strong id="rds_03_0100__rds_modify_instance_name_b111722319302_1">Database</strong>, click <strong id="rds_03_0100__rds_modify_instance_name_b15118152363010_1">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_03_0100__li15496123223411"><span>On the <span class="uicontrol" id="rds_03_0100__uicontrol199094187393"><b>Instances</b></span> page, click the target DB instance. The <strong id="rds_03_0100__b6990175312213">Summary</strong> page is displayed.</span></li><li id="rds_03_0100__en-us_topic_0192954021_li259959134914"><span>In the navigation pane on the left, choose <strong id="rds_03_0100__b12860162015488">Backups &amp; Restorations</strong>. On the <strong id="rds_03_0100__b17538103712493">Merged Binlogs</strong> page, select a binlog time range and click <strong id="rds_03_0100__b18847123911508">Merge</strong>.</span><p><ul id="rds_03_0100__ul1155113411555"><li id="rds_03_0100__li12253143813558">The maximum time range for merging binlogs is 24 hours.</li><li id="rds_03_0100__li1455173485513">The available time range is consistent with the retention period you have set for the automated backups. For details about how to set the retention period, see <a href="rds_08_0004.html">Configuring an Intra-Region Backup Policy</a>.</li></ul>
</p></li><li id="rds_03_0100__en-us_topic_0192954021_li13425424123412"><span>During the merging process, the file status is <strong id="rds_03_0100__en-us_topic_0192954021_b1538719228232">Merging</strong>. Wait until the status becomes <strong id="rds_03_0100__en-us_topic_0192954021_b143533324235">Merged successfully</strong> and click <strong id="rds_03_0100__en-us_topic_0192954021_b8996244172315">Download</strong> in the <strong id="rds_03_0100__en-us_topic_0192954021_b169381248182314">Operation</strong> column.</span></li><li id="rds_03_0100__en-us_topic_0192954021_li169605331363"><span>In the displayed dialog box, select a download method.</span><p><div class="note" id="rds_03_0100__en-us_topic_0192954021_note1856713259447"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_03_0100__p128447480384">After the merged file is downloaded, delete it. The system will delete it after 30 days if you do not delete it yourself.</p>
<p id="rds_03_0100__p14612919193813">On the <span class="uicontrol" id="rds_03_0100__uicontrol120124818423"><b>Merged Binlogs</b></span> page, you can locate the target merged binlog to be deleted and click <strong id="rds_03_0100__b320117488423">Delete</strong> in the <strong id="rds_03_0100__b82011848174211">Operation</strong> column.</p>
</div></div>
<ul id="rds_03_0100__en-us_topic_0192954021_ul357432519447"><li id="rds_03_0100__en-us_topic_0192954021_li4573192519444"><strong id="rds_03_0100__en-us_topic_0192954021_b14463105312268">Use OBS Browser+</strong><ol type="a" id="rds_03_0100__en-us_topic_0192954021_ol145738254446"><li id="rds_03_0100__en-us_topic_0192954021_li75715254447">Download OBS Browser+ by following Step 1 provided on the download guide page.</li><li id="rds_03_0100__en-us_topic_0192954021_li1157119259448">Decompress and install OBS Browser+.</li><li id="rds_03_0100__en-us_topic_0192954021_li7572182514446">Log in to OBS Browser+ using the username provided in Step 2 on the download guide page.</li><li id="rds_03_0100__en-us_topic_0192954021_li05726251442">Add an external bucket using the bucket name provided in Step 2 on the download guide page.<p id="rds_03_0100__en-us_topic_0192954021_p19572132544411"><a name="rds_03_0100__en-us_topic_0192954021_li05726251442"></a><a name="en-us_topic_0192954021_li05726251442"></a>In the <strong id="rds_03_0100__b185431558151017">Add External Bucket</strong> dialog box of OBS Browser+, enter the bucket name provided in step 2 on the download guide page, and click <strong id="rds_03_0100__b12546135841014">OK</strong>.</p>
</li><li id="rds_03_0100__en-us_topic_0192954021_li557316254447">Download a merged binlog.<p id="rds_03_0100__en-us_topic_0192954021_p1457352510449"><a name="rds_03_0100__en-us_topic_0192954021_li557316254447"></a><a name="en-us_topic_0192954021_li557316254447"></a>On the OBS Browser+ page, click the bucket that you added. In the search box on the right of the object list page, enter the backup file name and start a search. In the search result, locate the target backup and click <span><img id="rds_03_0100__image147385019221" src="en-us_image_0000002557433943.png"></span> in the <strong id="rds_03_0100__b397283365017">Operation</strong> column.</p>
</li></ol>
</li><li id="rds_03_0100__en-us_topic_0192954021_li45731325164414"><p id="rds_03_0100__p7145182813362"><a name="rds_03_0100__en-us_topic_0192954021_li45731325164414"></a><a name="en-us_topic_0192954021_li45731325164414"></a><strong id="rds_03_0100__b5145132816365">Use Current Browser</strong></p>
<p id="rds_03_0100__en-us_topic_0192954021_li45731325164414p0">Download the merged binlog directly from the current browser.</p>
</li><li id="rds_03_0100__en-us_topic_0192954021_li1657416258448"><span class="uicontrol" id="rds_03_0100__uicontrol1123185251810"><b>Use Download URL</b></span><p id="rds_03_0100__en-us_topic_0192954021_p3573525114413">Click <span><img id="rds_03_0100__image11966174361714" src="en-us_image_0000002526234126.png"></span> to copy the URL within the validity period to download the merged binlog.</p>
<ul id="rds_03_0100__en-us_topic_0192954021_ul17574142574413"><li id="rds_03_0100__en-us_topic_0192954021_li15734253448">You can use other download tools to download the merged binlog.</li><li id="rds_03_0100__en-us_topic_0192954021_li5574172554417">You can also run the following command to download the merged binlog:<p id="rds_03_0100__en-us_topic_0192954021_p1157412519445"><a name="rds_03_0100__en-us_topic_0192954021_li5574172554417"></a><a name="en-us_topic_0192954021_li5574172554417"></a><strong id="rds_03_0100__en-us_topic_0192954021_b357452518447">wget -O</strong> <em id="rds_03_0100__en-us_topic_0192954021_i657462515448">FILE_NAME</em> <strong id="rds_03_0100__en-us_topic_0192954021_b125741425144415">--no-check-certificate</strong> <strong id="rds_03_0100__en-us_topic_0192954021_b17574425204412">"</strong><em id="rds_03_0100__en-us_topic_0192954021_i95742256449">DOWNLOAD_URL</em><strong id="rds_03_0100__en-us_topic_0192954021_b5574162544419">"</strong></p>
<p id="rds_03_0100__en-us_topic_0192954021_p1657418255447">Variables in the commands are as follows:</p>
<p id="rds_03_0100__en-us_topic_0192954021_p185741225164416"><em id="rds_03_0100__en-us_topic_0192954021_i1957482564412">FILE_NAME</em>: indicates the new name of the merged binlog file. The original backup file name may be too long and exceed the maximum characters allowed by the client file system. You are advised to use the <strong id="rds_03_0100__b69374422210">-O</strong> argument with wget to rename the backup file.</p>
<p id="rds_03_0100__en-us_topic_0192954021_p9574625174417"><em id="rds_03_0100__en-us_topic_0192954021_i1757482518444">DOWNLOAD_URL</em>: indicates the location of the merged binlog to be downloaded. If the location contains special characters, escape is required.</p>
</li></ul>
</li></ul>
</p></li></ol>
</div>
</div>
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<tr id="rds_04_0061__row11481114183410"><td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_04_0061__p26141545344">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="76%" headers="mcps1.3.2.2.5.2.2.2.3.1.2 "><p id="rds_04_0061__p19221645726">Determines the DB instance read/write speed. The higher the maximum throughput is, the higher the DB instance read/write speed can be.</p>
<ul id="rds_04_0061__ul1292212451520"><li id="rds_04_0061__li189226451523"><strong id="rds_04_0061__b292214454215">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_04_0061__li292214451324"><strong id="rds_04_0061__b199221045621">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li></ul>
<ul id="rds_04_0061__ul1292212451520"><li id="rds_04_0061__li189226451523"><strong id="rds_04_0061__b292214454215">Cloud SSD</strong>: cloud drives used to decouple storage from compute. The maximum throughput is 350 MB/s.</li><li id="rds_04_0061__li292214451324"><strong id="rds_04_0061__b199221045621">Extreme SSD</strong>: uses 25GE network and RDMA technologies to provide you with up to 1,000 MB/s throughput per disk and sub-millisecond latency.</li><li id="rds_04_0061__li89539591842"><strong id="rds_04_0061__b5120123168">Flexible SSD</strong>: decouples capacity from performance and allows for tailored IOPS and throughput for your business requirements. This storage type is ideal for mainstream interactive applications that require high performance and low latency.</li></ul>
</td>
</tr>
<tr id="rds_04_0061__row750212335314"><td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.5.2.2.2.3.1.1 "><p id="rds_04_0061__p112255955412">Primary AZ/Standby AZ</p>
@ -78,7 +78,7 @@
<tr id="rds_04_0061__row363084061415"><td class="cellrowborder" valign="top" width="19.74%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_04_0061__p126303409148">Storage Space</p>
</td>
<td class="cellrowborder" valign="top" width="80.25999999999999%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_04_0061__p177851720184018">Contains the file system overhead required for inode, reserved block, and database operation. Storage space can range in size from 40 GB to 4,000 GB and can be scaled up only by a multiple of 10 GB.</p>
<p id="rds_04_0061__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see section <a href="rds_sqlserver_scale_cluster.html">Scaling up Storage Space</a>.</p>
<p id="rds_04_0061__p13797182010276">After a DB instance is created, you can scale up its storage space. For details, see section <a href="rds_sqlserver_scale_cluster.html">Scaling Up Storage Space</a>.</p>
</td>
</tr>
<tr id="rds_04_0061__row10653108405"><td class="cellrowborder" valign="top" width="19.74%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_04_0061__p78026222713">Enable autoscaling</p>
@ -87,6 +87,18 @@
</div>
</td>
</tr>
<tr id="rds_04_0061__row5317525120"><td class="cellrowborder" valign="top" width="19.74%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_04_0061__p957810411419">IOPS</p>
</td>
<td class="cellrowborder" valign="top" width="80.25999999999999%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_04_0061__p1479043414912">This parameter is required when the storage type is <strong id="rds_04_0061__b59745445916">Flexible SSD</strong>.</p>
<p id="rds_04_0061__p164560229108">The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</td>
</tr>
<tr id="rds_04_0061__row186272519123"><td class="cellrowborder" valign="top" width="19.74%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_04_0061__p1398311411817">Throughput</p>
</td>
<td class="cellrowborder" valign="top" width="80.25999999999999%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_04_0061__p33333381693">This parameter is required when the storage type is <strong id="rds_04_0061__b1080524813911">Flexible SSD</strong>.</p>
<p id="rds_04_0061__p2407414152616">The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</td>
</tr>
<tr id="rds_04_0061__row121651133419"><td class="cellrowborder" valign="top" width="19.74%" headers="mcps1.3.2.2.5.2.3.2.3.1.1 "><p id="rds_04_0061__p438435219119">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="80.25999999999999%" headers="mcps1.3.2.2.5.2.3.2.3.1.2 "><p id="rds_04_0061__p124855615294">Enabling disk encryption enhances data security but reduces the database's read and write performance by 5%.</p>

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</li>
<li class="ulchildlink"><strong><a href="en-us_topic_scale_rds.html">Changing a DB Instance Class</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_scale_cluster.html">Scaling up Storage Space</a></strong><br>
<li class="ulchildlink"><strong><a href="en-us_topic_scale_cluster.html">Scaling Up Storage Space</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="rds_05_0039.html">Storage Autoscaling</a></strong><br>
</li>

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</div>
<div class="section" id="rds_05_0003__section5641111512100"><h4 class="sectiontitle">Constraints</h4><ul id="rds_05_0003__ul2904522191111"><li id="rds_05_0003__li1990413225117">If the replication delay between primary and standby DB instances is longer than 300 seconds, the minor version cannot be upgraded.</li><li id="rds_05_0003__li1263687139">Minor versions cannot be upgraded for DB instances with abnormal nodes.</li><li id="rds_05_0003__li19614125151115">Currently, RDS for <span class="keyword" id="rds_05_0003__keyword1284113720598">MySQL</span> supports a maximum of 100,000 tables. If there are more than 100,000 tables, the minor version upgrade may fail.</li></ul>
</div>
<div class="section" id="rds_05_0003__section2059714272261"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0003__ol6724161419271"><li id="rds_05_0003__li19861524513"><span>Log in to the management console.</span></li><li id="rds_05_0003__li38612219517"><span>Click <span><img id="rds_05_0003__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0003__li586216213517"><span>Click <strong id="rds_05_0003__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0003__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0003__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0003__li61161897172844"><span>On the <strong id="rds_05_0003__b18328163217598">Instances</strong> page, click the instance name to go to the <strong id="rds_05_0003__b1277511398414">Overview</strong> page.</span></li><li id="rds_05_0003__li9321516103414"><span>Under <strong id="rds_05_0003__b13210165340">DB Engine Version</strong>, click <strong id="rds_05_0003__b1132141633419">Upgrade Minor Version</strong>.</span></li><li id="rds_05_0003__li36398892172958"><span>In the displayed dialog box, select a scheduled time and click <strong id="rds_05_0003__b1016717367514">OK</strong>.</span></li></ol>
<div class="section" id="rds_05_0003__section2059714272261"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0003__ol6724161419271"><li id="rds_05_0003__li19861524513"><span>Log in to the management console.</span></li><li id="rds_05_0003__li38612219517"><span>Click <span><img id="rds_05_0003__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0003__li586216213517"><span>Click <strong id="rds_05_0003__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0003__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0003__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0003__li61161897172844"><span>On the <strong id="rds_05_0003__b18328163217598">Instances</strong> page, click the instance name to go to the <strong id="rds_05_0003__b71451919133613">Summary</strong> page.</span></li><li id="rds_05_0003__li9321516103414"><span>Under <strong id="rds_05_0003__b13210165340">DB Engine Version</strong>, click <strong id="rds_05_0003__b1132141633419">Upgrade Minor Version</strong>.</span></li><li id="rds_05_0003__li36398892172958"><span>In the displayed dialog box, select a scheduled time and click <strong id="rds_05_0003__b1016717367514">OK</strong>.</span></li></ol>
</div>
</div>
<div>

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</div>
<div class="section" id="rds_05_0024__section593175034210"><h4 class="sectiontitle">Changing a Floating IP Address</h4><p id="rds_05_0024__p154361752114218">You can <span class="keyword" id="rds_05_0024__keyword1662013212288">change the floating IP address</span> of an existing DB instance.</p>
</div>
<ol id="rds_05_0024__ol10762913125018"><li id="rds_05_0024__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0024__li146168481712"><span>Click <span><img id="rds_05_0024__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0024__li96167481711"><span>Click <strong id="rds_05_0024__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0024__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0024__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0024__li461813238517"><span>On the <strong id="rds_05_0024__b4323887426">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0024__b1711113404234">Overview</strong> page.</span></li><li id="rds_05_0024__li893551843716"><span>Under <strong id="rds_05_0024__b1143665315240">Floating IP Address</strong>, click <strong id="rds_05_0024__b0945114913241">Configure</strong>.</span></li><li id="rds_05_0024__li20205612185217"><span>In the displayed dialog box, check the number of in-use IP addresses. If the in-use IP addresses are less than 254, there are unused floating IP addresses.</span></li><li id="rds_05_0024__li24721645571"><span>Select an available IP address and click <strong id="rds_05_0024__b164371243105510">OK</strong>.</span><p><p id="rds_05_0024__p887320520579">An in-use IP address cannot be used as the new floating IP address of the DB instance.</p>
<ol id="rds_05_0024__ol10762913125018"><li id="rds_05_0024__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0024__li146168481712"><span>Click <span><img id="rds_05_0024__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0024__li96167481711"><span>Click <strong id="rds_05_0024__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0024__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0024__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0024__li461813238517"><span>On the <strong id="rds_05_0024__b4323887426">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0024__b37111426132511">Summary</strong> page.</span></li><li id="rds_05_0024__li893551843716"><span>Under <strong id="rds_05_0024__b1143665315240">Floating IP Address</strong>, click <strong id="rds_05_0024__b0945114913241">Configure</strong>.</span></li><li id="rds_05_0024__li20205612185217"><span>In the displayed dialog box, check the number of in-use IP addresses. If the in-use IP addresses are less than 254, there are unused floating IP addresses.</span></li><li id="rds_05_0024__li24721645571"><span>Select an available IP address and click <strong id="rds_05_0024__b164371243105510">OK</strong>.</span><p><p id="rds_05_0024__p887320520579">An in-use IP address cannot be used as the new floating IP address of the DB instance.</p>
</p></li></ol>
</div>
<div>

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<div class="section" id="rds_05_0038__section1627950142310"><h4 class="sectiontitle">Precautions</h4><ul id="rds_05_0038__ul2421640153812"><li id="rds_05_0038__li1043184003812">During the maintenance window, the DB instance will be intermittently disconnected for one or two times. Ensure that your applications support automatic reconnection.</li></ul>
</div>
<div class="section" id="rds_05_0038__section3437195084312"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0038__ol194824585432"><li id="rds_05_0038__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0038__li146168481712"><span>Click <span><img id="rds_05_0038__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0038__li96167481711"><span>Click <strong id="rds_05_0038__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0038__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0038__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0038__li45651852101719"><span>On the <strong id="rds_05_0038__b1281132165712">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0038__b49088532303">Overview</strong> page. Under <strong id="rds_05_0038__b7788142865813">Maintenance Window</strong>, click <strong id="rds_05_0038__b536202831114">Configure</strong>.</span></li><li id="rds_05_0038__li1968591914482"><span>In the displayed dialog box, select an interval and a time range, and click <strong id="rds_05_0038__b16438191433318">OK</strong>.</span><p><div class="note" id="rds_05_0038__note14280145018492"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_05_0038__p7282950184919">Changing the maintenance window does not affect the execution time of the scheduled tasks in the original maintenance period.</p>
<div class="section" id="rds_05_0038__section3437195084312"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0038__ol194824585432"><li id="rds_05_0038__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0038__li146168481712"><span>Click <span><img id="rds_05_0038__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0038__li96167481711"><span>Click <strong id="rds_05_0038__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0038__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0038__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0038__li45651852101719"><span>On the <strong id="rds_05_0038__b1281132165712">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0038__b12258346361">Summary</strong> page. Under <strong id="rds_05_0038__b7788142865813">Maintenance Window</strong>, click <strong id="rds_05_0038__b536202831114">Configure</strong>.</span></li><li id="rds_05_0038__li1968591914482"><span>In the displayed dialog box, select an interval and a time range, and click <strong id="rds_05_0038__b16438191433318">OK</strong>.</span><p><div class="note" id="rds_05_0038__note14280145018492"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_05_0038__p7282950184919">Changing the maintenance window does not affect the execution time of the scheduled tasks in the original maintenance period.</p>
</div></div>
</p></li></ol>
</div>

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<p id="rds_05_0039__p119711841104310">You can enable storage autoscaling in either of the following ways:</p>
<ul id="rds_05_0039__ul209718415433"><li id="rds_05_0039__li6971134114317">Enable this function when you create a DB instance. For details, see <a href="rds_02_0008.html">Step 1: Create a DB Instance</a>.</li><li id="rds_05_0039__li149711841174316">Enable this function after you create a DB instance. See the operations provided in this section.</li></ul>
</div>
<div class="section" id="rds_05_0039__section6787733202313"><h4 class="sectiontitle">Constraints</h4><ul id="rds_05_0039__ul979225822314"><li id="rds_05_0039__li06727368284">The storage space can be scaled up automatically only when your instance status is <strong id="rds_05_0039__b1171614297219">Available</strong> or <strong id="rds_05_0039__b671716291129">Storage full</strong>.</li><li id="rds_05_0039__li92060111419">Storage autoscaling for RDS for MySQL DB instances is supported only for cloud SSD and extreme SSD storage types.</li><li id="rds_05_0039__li7486533103711">The maximum allowed storage is 4,000 GB.</li><li id="rds_05_0039__li1332761153919">For primary/standby DB instances, autoscaling the storage for the primary DB instance will also autoscale the storage for the standby DB instance.</li><li id="rds_05_0039__li17123197163913">Storage autoscaling is unavailable when the DB instance is in any of the following statuses: changing instance class, upgrading a minor version, migrating the standby DB instance, and rebooting.</li></ul>
<div class="section" id="rds_05_0039__section6787733202313"><h4 class="sectiontitle">Constraints</h4><ul id="rds_05_0039__ul979225822314"><li id="rds_05_0039__li06727368284">The storage space can be scaled up automatically only when your instance status is <strong id="rds_05_0039__b1171614297219">Available</strong> or <strong id="rds_05_0039__b671716291129">Storage full</strong>.</li><li id="rds_05_0039__li7486533103711">The maximum allowed storage is 4,000 GB.</li><li id="rds_05_0039__li1332761153919">For primary/standby DB instances, autoscaling the storage for the primary DB instance will also autoscale the storage for the standby DB instance.</li><li id="rds_05_0039__li17123197163913">Storage autoscaling is unavailable when the DB instance is in any of the following statuses: changing instance class, upgrading a minor version, migrating the standby DB instance, and rebooting.</li></ul>
</div>
<div class="section" id="rds_05_0039__section132050514149"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0039__ol4816555385651"><li id="rds_05_0039__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0039__li146168481712"><span>Click <span><img id="rds_05_0039__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0039__li96167481711"><span>Click <strong id="rds_05_0039__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0039__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0039__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0039__li683691813294"><span>On the <strong id="rds_05_0039__b36340357311">Instances</strong> page, click the target DB instance or read replica name (click <span><img id="rds_05_0039__image2099112213211" src="en-us_image_0000002492673373.png"></span> in front of a DB instance to locate the read replica) to go to the <strong id="rds_05_0039__b2054716153405">Overview</strong> page.</span></li><li id="rds_05_0039__li57411551748"><span>In the <span class="uicontrol" id="rds_05_0039__uicontrol6559713154519"><b>Storage &amp; Backup</b></span> area, toggle on the <strong id="rds_05_0039__b5716145718409">Storage Autoscaling</strong> switch.</span></li><li id="rds_05_0039__lf939df2e325d47d490c6ffdacf5f0b19"><span>In the displayed dialog box, set the following parameters:</span><p>
<div class="section" id="rds_05_0039__section132050514149"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0039__ol4816555385651"><li id="rds_05_0039__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0039__li146168481712"><span>Click <span><img id="rds_05_0039__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0039__li96167481711"><span>Click <strong id="rds_05_0039__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0039__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0039__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0039__li683691813294"><span>On the <strong id="rds_05_0039__b36340357311">Instances</strong> page, click the target DB instance or read replica name (click <span><img id="rds_05_0039__image2099112213211" src="en-us_image_0000002492673373.png"></span> in front of a DB instance to locate the read replica) to go to the <strong id="rds_05_0039__b2969153017367">Summary</strong> page.</span></li><li id="rds_05_0039__li57411551748"><span>In the <span class="uicontrol" id="rds_05_0039__uicontrol6559713154519"><b>Storage &amp; Backup</b></span> area, toggle on the <strong id="rds_05_0039__b5716145718409">Storage Autoscaling</strong> switch.</span></li><li id="rds_05_0039__lf939df2e325d47d490c6ffdacf5f0b19"><span>In the displayed dialog box, set the following parameters:</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_05_0039__table1792553812574" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter description</caption><thead align="left"><tr id="rds_05_0039__row492519386579"><th align="left" class="cellrowborder" valign="top" width="36.449999999999996%" id="mcps1.3.3.2.6.2.1.2.3.1.1"><p id="rds_05_0039__p179245387578"><strong id="rds_05_0039__b1878293141518">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="63.55%" id="mcps1.3.3.2.6.2.1.2.3.1.2"><p id="rds_05_0039__p192511388575"><strong id="rds_05_0039__b17792152841518">Description</strong></p>

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<h1 class="topictitle1">Migrating a Standby DB Instance</h1>
<div id="body1569306937973"><div class="section" id="rds_05_0060__section11993742229"><h4 class="sectiontitle">Scenarios</h4><p id="rds_05_0060__p899313421822">You can migrate a standby DB instance to another AZ in the same region as the original AZ.</p>
<div class="note" id="rds_05_0060__note10993342423"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_05_0060__ul15993542327"><li id="rds_05_0060__li184713018151">Primary/standby instances running MySQL 5.7, or 8.0 support standby instance migration to another AZ. </li><li id="rds_05_0060__li79931542523">DDL operations and scheduled events will be suspended during migration. To prevent service interruptions, perform the migration during off-peak hours.</li></ul>
<div class="note" id="rds_05_0060__note10993342423"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="rds_05_0060__ul15993542327"><li id="rds_05_0060__li184713018151">Primary/standby instances running MySQL 5.7 or 8.0 support standby instance migration to another AZ. </li><li id="rds_05_0060__li79931542523">DDL operations and scheduled events will be suspended during migration. To prevent service interruptions, perform the migration during off-peak hours.</li></ul>
</div></div>
</div>
<div class="section" id="rds_05_0060__section2366163112409"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0060__o2173078bb42c41a0b711d64c49e2565d"><li id="rds_05_0060__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0060__li146168481712"><span>Click <span><img id="rds_05_0060__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0060__li96167481711"><span>Click <strong id="rds_05_0060__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0060__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0060__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0060__li53158765111855"><span>On the <span class="uicontrol" id="rds_05_0060__uicontrol59770215612"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="rds_05_0060__uicontrol697982111611"><b>More</b></span> &gt; <span class="uicontrol" id="rds_05_0060__uicontrol19801211367"><b>Migrate Standby Instance to Another AZ</b></span> in the <span class="uicontrol" id="rds_05_0060__uicontrol2098110215613"><b>Operation</b></span> column.</span></li><li id="rds_05_0060__li18214928113618"><span>On the displayed page, select a target AZ and click <strong id="rds_05_0060__b148701224193010">Submit</strong>.</span></li><li id="rds_05_0060__li5427191015407"><span>After the migration is complete, you can view and manage the DB instance on the <span class="uicontrol" id="rds_05_0060__uicontrol1362265152119"><b>Instances</b></span> page.</span><p><ul id="rds_05_0060__ul41357172418"><li id="rds_05_0060__li181359179419">During the migration process, the DB instance status is <strong id="rds_05_0060__b17843153810347">Migrating standby DB instance</strong>. You can view the progress on the <span class="uicontrol" id="rds_05_0060__uicontrol151966421224"><b>Task Center</b></span> page. For details, see section <a href="rds_05_0007.html">Task Center</a>.</li><li id="rds_05_0060__li17112134118">In the upper right corner of the DB instance list, click <span><img id="rds_05_0060__image17447059193220" src="en-us_image_0000001191211495.png"></span> to refresh the list. After the migration is complete, the DB instance status will become <span class="uicontrol" id="rds_05_0060__uicontrol11336414112110"><b>Available</b></span>.</li><li id="rds_05_0060__li141551334112511">On the <strong id="rds_05_0060__b7118545110">Overview</strong> page, find <strong id="rds_05_0060__b910433611120">AZ</strong> and check the AZ hosting the standby DB instance.</li></ul>
<div class="section" id="rds_05_0060__section2366163112409"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0060__o2173078bb42c41a0b711d64c49e2565d"><li id="rds_05_0060__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0060__li146168481712"><span>Click <span><img id="rds_05_0060__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0060__li96167481711"><span>Click <strong id="rds_05_0060__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0060__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0060__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0060__li53158765111855"><span>On the <span class="uicontrol" id="rds_05_0060__uicontrol59770215612"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="rds_05_0060__uicontrol697982111611"><b>More</b></span> &gt; <span class="uicontrol" id="rds_05_0060__uicontrol19801211367"><b>Migrate Standby Instance to Another AZ</b></span> in the <span class="uicontrol" id="rds_05_0060__uicontrol2098110215613"><b>Operation</b></span> column.</span></li><li id="rds_05_0060__li18214928113618"><span>On the displayed page, select a target AZ and click <strong id="rds_05_0060__b148701224193010">Submit</strong>.</span></li><li id="rds_05_0060__li5427191015407"><span>After the migration is complete, you can view and manage the DB instance on the <span class="uicontrol" id="rds_05_0060__uicontrol1362265152119"><b>Instances</b></span> page.</span><p><ul id="rds_05_0060__ul41357172418"><li id="rds_05_0060__li181359179419">During the migration process, the DB instance status is <strong id="rds_05_0060__b17843153810347">Migrating standby DB instance</strong>. You can view the progress on the <span class="uicontrol" id="rds_05_0060__uicontrol151966421224"><b>Task Center</b></span> page. For details, see section <a href="rds_05_0007.html">Task Center</a>.</li><li id="rds_05_0060__li17112134118">In the upper right corner of the DB instance list, click <span><img id="rds_05_0060__image17447059193220" src="en-us_image_0000001191211495.png"></span> to refresh the list. After the migration is complete, the DB instance status will become <span class="uicontrol" id="rds_05_0060__uicontrol11336414112110"><b>Available</b></span>.</li><li id="rds_05_0060__li141551334112511">On the <strong id="rds_05_0060__b12369936143617">Summary</strong> page, find <strong id="rds_05_0060__b910433611120">AZ</strong> and check the AZ hosting the standby DB instance.</li></ul>
</p></li></ol>
</div>
<p id="rds_05_0060__p8060118"></p>

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@ -7,7 +7,7 @@
<div class="section" id="rds_05_0085__section593175034210"><h4 class="sectiontitle">Procedure</h4><p id="rds_05_0085__p142803994218">When you buy a DB instance, the system automatically assigns a private domain name to your instance.</p>
<p id="rds_05_0085__p1382518516488">After the DB instance is created, you can change the private domain name as needed.</p>
</div>
<ol id="rds_05_0085__ol10762913125018"><li id="rds_05_0085__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0085__li146168481712"><span>Click <span><img id="rds_05_0085__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0085__li96167481711"><span>Click <strong id="rds_05_0085__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0085__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0085__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0085__li461813238517"><span>On the <strong id="rds_05_0085__b4323887426">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0085__b1711113404234">Overview</strong> page.</span></li><li id="rds_05_0085__li893551843716"><span>Under <strong id="rds_05_0085__b16429152634016">Private Domain Name</strong>, click <strong id="rds_05_0085__b10430162644013">Configure</strong>.</span><p><p id="rds_05_0085__p14631182513377">Alternatively, in the navigation pane on the left, choose <strong id="rds_05_0085__b41039399427">Connectivity &amp; Security</strong>. On the displayed page, click <strong id="rds_05_0085__b1510673964214">Change</strong> next to the <strong id="rds_05_0085__b510614399424">Private Domain Name</strong> field.</p>
<ol id="rds_05_0085__ol10762913125018"><li id="rds_05_0085__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0085__li146168481712"><span>Click <span><img id="rds_05_0085__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0085__li96167481711"><span>Click <strong id="rds_05_0085__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0085__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0085__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0085__li461813238517"><span>On the <strong id="rds_05_0085__b4323887426">Instances</strong> page, click the target DB instance name to go to the <strong id="rds_05_0085__b1351252712513">Summary</strong> page.</span></li><li id="rds_05_0085__li893551843716"><span>Under <strong id="rds_05_0085__b16429152634016">Private Domain Name</strong>, click <strong id="rds_05_0085__b10430162644013">Configure</strong>.</span><p><p id="rds_05_0085__p14631182513377">Alternatively, in the navigation pane on the left, choose <strong id="rds_05_0085__b41039399427">Connectivity &amp; Security</strong>. On the displayed page, click <strong id="rds_05_0085__b1510673964214">Change</strong> next to the <strong id="rds_05_0085__b510614399424">Private Domain Name</strong> field.</p>
</p></li><li id="rds_05_0085__li20205612185217"><span>In the displayed dialog box, enter a new domain name and click <strong id="rds_05_0085__b1338217536589">OK</strong>.</span><p><ul id="rds_05_0085__ul74714391343"><li id="rds_05_0085__li1747153910415">Only the prefix of a private domain name can be modified.</li><li id="rds_05_0085__li124714391649">The prefix of a private domain name contains 8 to 63 characters, and can include only letters and digits.</li><li id="rds_05_0085__li154711639346">The new private domain name must be different from existing ones.</li></ul>
</p></li></ol>
</div>

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@ -2,6 +2,7 @@
<h1 class="topictitle1">Changing a Storage Type</h1>
<div id="body0000002493857913"><div class="section" id="rds_05_0140__section18415141193414"><h4 class="sectiontitle">Scenarios</h4><p id="rds_05_0140__en-us_topic_0000001992666646_en-us_topic_0000001583350996_p720173244715">If the storage type of your RDS DB instance does not match your workloads, you can change it as needed.</p>
<p id="rds_05_0140__p19823163232918">For details about storage types, see <a href="rds_01_0020.html">DB Instance Storage Types</a>.</p>
</div>
<div class="section" id="rds_05_0140__en-us_topic_0000001992666646_en-us_topic_0000001583350996_section204421514102117"><h4 class="sectiontitle">Constraints</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_05_0140__en-us_topic_0000001992666646_table561053064010" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Constraints</caption><thead align="left"><tr id="rds_05_0140__en-us_topic_0000001992666646_row1649630204017"><th align="left" class="cellrowborder" valign="top" width="22.720000000000002%" id="mcps1.3.2.2.2.3.1.1"><p id="rds_05_0140__en-us_topic_0000001992666646_p8649163014012">Phase</p>
@ -29,7 +30,7 @@
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_05_0140__en-us_topic_0000001992666646_table471721184412" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Storage types</caption><thead align="left"><tr id="rds_05_0140__en-us_topic_0000001992666646_row13770111111449"><th align="left" class="cellrowborder" valign="top" width="29.24%" id="mcps1.3.2.3.2.4.1.1"><p id="rds_05_0140__en-us_topic_0000001992666646_p1243401911476">Instance Type</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="rds_05_0140__en-us_topic_0000001992666646_table471721184412" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Storage types that can be changed</caption><thead align="left"><tr id="rds_05_0140__en-us_topic_0000001992666646_row13770111111449"><th align="left" class="cellrowborder" valign="top" width="29.24%" id="mcps1.3.2.3.2.4.1.1"><p id="rds_05_0140__en-us_topic_0000001992666646_p1243401911476">Instance Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.52%" id="mcps1.3.2.3.2.4.1.2"><p id="rds_05_0140__en-us_topic_0000001992666646_p18770211144414">Original Storage Type</p>
</th>
@ -37,24 +38,62 @@
</th>
</tr>
</thead>
<tbody><tr id="rds_05_0140__en-us_topic_0000001992666646_row277012116448"><td class="cellrowborder" rowspan="2" valign="top" width="29.24%" headers="mcps1.3.2.3.2.4.1.1 "><ul id="rds_05_0140__ul155929341504"><li id="rds_05_0140__li859210348017">Primary/Standby</li><li id="rds_05_0140__li122541361607">Read Replica</li><li id="rds_05_0140__li89183119115">Single</li></ul>
<tbody><tr id="rds_05_0140__row920119518189"><td class="cellrowborder" rowspan="2" valign="top" width="29.24%" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p152011451201813">Single</p>
</td>
<td class="cellrowborder" valign="top" width="33.52%" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__en-us_topic_0000001992666646_p54991533164517">Cloud SSD</p>
<td class="cellrowborder" valign="top" width="33.52%" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p120125112183">Cloud SSD</p>
</td>
<td class="cellrowborder" valign="top" width="37.24%" headers="mcps1.3.2.3.2.4.1.3 "><p id="rds_05_0140__en-us_topic_0000001992666646_p168163563452">Extreme SSD</p>
<td class="cellrowborder" valign="top" width="37.24%" headers="mcps1.3.2.3.2.4.1.3 "><p id="rds_05_0140__p82011651111813">Flexible SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row18795714118"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p08291717118">Ultra-high I/O</p>
<tr id="rds_05_0140__row1454982442014"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p2054952417207">Flexible SSD</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p5828171813">Cloud SSD or extreme SSD</p>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p254914245204">Cloud SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row963765410183"><td class="cellrowborder" rowspan="3" valign="top" width="29.24%" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p954134914559">Read Replica</p>
</td>
<td class="cellrowborder" valign="top" width="33.52%" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p166621710112114">Cloud SSD</p>
</td>
<td class="cellrowborder" valign="top" width="37.24%" headers="mcps1.3.2.3.2.4.1.3 "><p id="rds_05_0140__p15662910112116">Extreme SSD or Flexible SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row191808443191"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p6662510162114">Extreme SSD</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p20662141013212">Cloud SSD or Flexible SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row1243713444198"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p26622010112113">Flexible SSD</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p9662151002111">Cloud SSD or Extreme SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row073216137551"><td class="cellrowborder" rowspan="3" valign="top" width="29.24%" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p12732111325519">Primary/Standby</p>
</td>
<td class="cellrowborder" valign="top" width="33.52%" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p978503135616">Cloud SSD</p>
</td>
<td class="cellrowborder" valign="top" width="37.24%" headers="mcps1.3.2.3.2.4.1.3 "><p id="rds_05_0140__p19785113135614">Extreme SSD or Flexible SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row19912147556"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p7785138560">Extreme SSD</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p1778513175616">Cloud SSD or Flexible SSD</p>
</td>
</tr>
<tr id="rds_05_0140__row12547191455511"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.1 "><p id="rds_05_0140__p137859305610">Flexible SSD</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.4.1.2 "><p id="rds_05_0140__p278520325620">Cloud SSD or Extreme SSD</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section" id="rds_05_0140__section3437195084312"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0140__ol194824585432"><li id="rds_05_0140__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0140__li146168481712"><span>Click <span><img id="rds_05_0140__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0140__li96167481711"><span>Click <strong id="rds_05_0140__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0140__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0140__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0140__li45651852101719"><span>On the <span class="uicontrol" id="rds_05_0140__uicontrol1570716377538"><b>Instances</b></span> page, locate a DB instance using cloud SSD and choose <span class="uicontrol" id="rds_05_0140__uicontrol167071337125311"><b>More</b></span> &gt; <span class="uicontrol" id="rds_05_0140__uicontrol18707143719533"><b>Change Instance Class</b></span> in the <span class="uicontrol" id="rds_05_0140__uicontrol370715377537"><b>Operation</b></span> column.</span><p><p id="rds_05_0140__p615141583510">Alternatively, click the instance name to go to the <strong id="rds_05_0140__b5907165415317">Overview</strong> page. Under <strong id="rds_05_0140__b1190711540534">Instance Class</strong>, click <strong id="rds_05_0140__b1390775445311">Configure</strong>.</p>
</p></li><li id="rds_05_0140__li1968591914482"><span>On the displayed page, select <strong id="rds_05_0140__b02281930195910">Extreme SSD</strong> for <strong id="rds_05_0140__b34921427155917">Storage Type</strong> and click <strong id="rds_05_0140__b111301174264">Next</strong>.</span></li><li id="rds_05_0140__li2015111503515"><span>Confirm the new storage type. Click <span class="uicontrol" id="rds_05_0140__uicontrol543535718597"><b>Submit</b></span>.</span></li><li id="rds_05_0140__li81651517357"><span>Check the results.</span><p><p id="rds_05_0140__p171661583512">Return to the <strong id="rds_05_0140__b138351935812">Instances</strong> page. A few minutes later, click the instance name and check the new storage type on the displayed <strong id="rds_05_0140__b17209155218114">Overview</strong> page.</p>
<div class="section" id="rds_05_0140__section3437195084312"><h4 class="sectiontitle">Procedure</h4><ol id="rds_05_0140__ol194824585432"><li id="rds_05_0140__li17616348171"><span>Log in to the management console.</span></li><li id="rds_05_0140__li146168481712"><span>Click <span><img id="rds_05_0140__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_05_0140__li96167481711"><span>Click <strong id="rds_05_0140__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_05_0140__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_05_0140__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_05_0140__li45651852101719"><span>On the <span class="uicontrol" id="rds_05_0140__uicontrol1570716377538"><b>Instances</b></span> page, locate a DB instance using cloud SSD and choose <span class="uicontrol" id="rds_05_0140__uicontrol167071337125311"><b>More</b></span> &gt; <span class="uicontrol" id="rds_05_0140__uicontrol18707143719533"><b>Change Instance Class</b></span> in the <span class="uicontrol" id="rds_05_0140__uicontrol370715377537"><b>Operation</b></span> column.</span><p><p id="rds_05_0140__p615141583510">Alternatively, click the instance name to go to the <strong id="rds_05_0140__b9865183133618">Summary</strong> page. Under <strong id="rds_05_0140__b1190711540534">Instance Class</strong>, click <strong id="rds_05_0140__b1390775445311">Configure</strong>.</p>
</p></li><li id="rds_05_0140__li1968591914482"><span>On the displayed page, select a target Storage Type,<strong id="rds_05_0140__b178989131489"> </strong>for example,<strong id="rds_05_0140__b78984130815"> Extreme SSD</strong> for <strong id="rds_05_0140__b34921427155917">Storage Type</strong> and click <strong id="rds_05_0140__b111301174264">Next</strong>.</span><p><p id="rds_05_0140__p8419646181413">If the target storage type is <strong id="rds_05_0140__b14294555121420">Flexible SSD</strong>, click <strong id="rds_05_0140__b102389011520">Disk QoS</strong> under <strong id="rds_05_0140__b19502578159">Change Type</strong> and enter the IOPS and throughput.</p>
<ul id="rds_05_0140__ul782517243179"><li id="rds_05_0140__li98269244173">IOPS: Flexible SSD decouples capacity from performance and allows for tailored IOPS for your business requirements with fixed capacity.<p id="rds_05_0140__p9406614102618"><a name="rds_05_0140__li98269244173"></a><a name="li98269244173"></a>This parameter is available only for Flexible SSD. The value range is from 3000 to 128000. The IOPS is limited by the disk size and must be no greater than 500 times the disk capacity.</p>
</li><li id="rds_05_0140__li1185650191813">Throughput: Flexible SSD decouples capacity from performance and allows for tailored throughput for your business requirements with fixed capacity.<p id="rds_05_0140__p2407414152616"><a name="rds_05_0140__li1185650191813"></a><a name="li1185650191813"></a>This parameter is available only for Flexible SSD. The value ranges from 125 to 1000 (in MiB/s) and must also be no greater than the IOPS divided by 4.</p>
</li></ul>
</p></li><li id="rds_05_0140__li2015111503515"><span>Confirm the configurations and Click <span class="uicontrol" id="rds_05_0140__uicontrol543535718597"><b>Submit</b></span>.</span></li><li id="rds_05_0140__li81651517357"><span>Check the results.</span><p><p id="rds_05_0140__p171661583512">Return to the <strong id="rds_05_0140__b138351935812">Instances</strong> page. A few minutes later, click the instance name and check the new storage type on the displayed <strong id="rds_05_0140__b793116321361">Summary</strong> page.</p>
</p></li></ol>
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<h1 class="topictitle1">Changing a Security Group</h1>
<div id="body1497948971433"><div class="section" id="rds_08_0003__section36712096194014"><h4 class="sectiontitle">Scenarios</h4><p id="rds_08_0003__p27667840173352">This section describes how to change the security group of a primary DB instance or read replica. For primary/standby DB instances, changing the security group of the primary DB instance will cause the security group of the standby DB instance to also be changed accordingly.</p>
</div>
<div class="section" id="rds_08_0003__section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0003__o3a2715f18c35409aa98d1b471dc7b5d3"><li id="rds_08_0003__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0003__li146168481712"><span>Click <span><img id="rds_08_0003__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0003__li96167481711"><span>Click <strong id="rds_08_0003__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0003__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0003__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0003__le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="rds_08_0003__b43610246918">Instances</strong> page, click the target primary DB instance or read replica.</span></li><li id="rds_08_0003__l2a5b3371b82b4bf0b87371149b3ffc1a"><span>On the <span class="uicontrol" id="rds_08_0003__uicontrol129475119718"><b>Overview</b></span> page, click <strong id="rds_08_0003__b10728173016315">Configure</strong> under <strong id="rds_08_0003__b20669101892918">Security Group</strong>.</span></li><li id="rds_08_0003__li10553132183112"><span>In the displayed dialog box, select one from the drop-down list.</span></li><li id="rds_08_0003__li7265815143216"><span>Click <strong id="rds_08_0003__b02712410311">OK</strong> to submit the modification.</span></li><li id="rds_08_0003__lde4afc21cfca4e758513b927fd3eb6bb"><span>Changing the security group takes 1 to 3 minutes. Click <span><img id="rds_08_0003__image06841349468" src="en-us_image_0000001145051618.png"></span> in the upper right corner on the <span class="uicontrol" id="rds_08_0003__uicontrol1616812353213"><b>Overview</b></span> page to view the results.</span></li></ol>
<div class="section" id="rds_08_0003__section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0003__o3a2715f18c35409aa98d1b471dc7b5d3"><li id="rds_08_0003__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0003__li146168481712"><span>Click <span><img id="rds_08_0003__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0003__li96167481711"><span>Click <strong id="rds_08_0003__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0003__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0003__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0003__le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="rds_08_0003__b43610246918">Instances</strong> page, click the target primary DB instance or read replica.</span></li><li id="rds_08_0003__l2a5b3371b82b4bf0b87371149b3ffc1a"><span>On the <span class="uicontrol" id="rds_08_0003__uicontrol1755285511251"><b>Summary</b></span> page, click <strong id="rds_08_0003__b10728173016315">Configure</strong> under <strong id="rds_08_0003__b20669101892918">Security Group</strong>.</span></li><li id="rds_08_0003__li10553132183112"><span>In the displayed dialog box, select one from the drop-down list.</span></li><li id="rds_08_0003__li7265815143216"><span>Click <strong id="rds_08_0003__b02712410311">OK</strong> to submit the modification.</span></li><li id="rds_08_0003__lde4afc21cfca4e758513b927fd3eb6bb"><span>Changing the security group takes 1 to 3 minutes. Click <span><img id="rds_08_0003__image06841349468" src="en-us_image_0000001145051618.png"></span> in the upper right corner on the <span class="uicontrol" id="rds_08_0003__uicontrol567212562255"><b>Summary</b></span> page to view the results.</span></li></ol>
</div>
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<div class="section" id="rds_08_0004__section12737163953218"><h4 class="sectiontitle">Constraints</h4><ul id="rds_08_0004__ul17777165775710"><li id="rds_08_0004__li8211930817">The number of tables in a DB instance affects the backup speed. The maximum number of tables is 500,000.</li><li id="rds_08_0004__li141061323458">The system verifies the connection to the DB instance when starting a full backup task. If either of the following conditions is met, the verification fails and a retry is automatically performed. If the retry fails, the backup will fail.<ul id="rds_08_0004__ul839422419612"><li id="rds_08_0004__li154334212616">DDL operations are being performed on the DB instance.</li><li id="rds_08_0004__li115310299613">The backup lock failed to be obtained from the DB instance.</li></ul>
</li></ul>
</div>
<div class="section" id="rds_08_0004__section22744299173619"><h4 class="sectiontitle">Modifying an Automated Backup Policy</h4><ol id="rds_08_0004__ol1839086092637"><li id="rds_08_0004__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0004__li146168481712"><span>Click <span><img id="rds_08_0004__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0004__li96167481711"><span>Click <strong id="rds_08_0004__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0004__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0004__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0004__li1750676792642"><span>On the <strong id="rds_08_0004__b47909245916358">Instances</strong> page, click the target DB instance.</span></li><li id="rds_08_0004__li6966152194417"><span>On the <strong id="rds_08_0004__b5950101816208">Backups &amp; Restorations</strong> page, in the upper right corner of the page, choose <strong id="rds_08_0004__b7840202811258">Modify Backup Policy</strong> &gt; <strong id="rds_08_0004__b19840102862512">Configure Same-Region Backup Policy</strong>. On the displayed page, you can view the existing backup policy. If you want to modify the policy, adjust the values of the following parameters:</span><p><ul id="rds_08_0004__ul9640101565917"><li id="rds_08_0004__li1864121515912"><strong id="rds_08_0004__b842352706113149">Retention Period</strong> is the number of days that your automated backups are saved for. Increasing the retention period will improve data reliability.</li><li id="rds_08_0004__li235141875913">If you shorten the retention period, the new backup policy takes effect for all backup files. Any backup files that have expired, based on a newly configured retention period, will be deleted.</li><li id="rds_08_0004__li109504460126">The backup retention period is the number of days you want automated full backups and binlog backups of your DB instance to be saved for. It ranges from 1–732 days. The backup time window is one hour. You are advised to select an off-peak time window for automated backups. By default, each day of the week is selected for <strong id="rds_08_0004__b1125417171809">Backup Cycle</strong> and you can change it. At least one day must be selected.</li></ul>
<div class="section" id="rds_08_0004__section22744299173619"><h4 class="sectiontitle">Modifying an Automated Backup Policy</h4><ol id="rds_08_0004__ol1839086092637"><li id="rds_08_0004__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0004__li146168481712"><span>Click <span><img id="rds_08_0004__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0004__li96167481711"><span>Click <strong id="rds_08_0004__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0004__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0004__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0004__li1750676792642"><span>On the <strong id="rds_08_0004__b47909245916358">Instances</strong> page, click the target DB instance.</span></li><li id="rds_08_0004__li6966152194417"><span>On the <strong id="rds_08_0004__b5950101816208">Backups &amp; Restorations</strong> page, in the upper right corner of the page, choose <strong id="rds_08_0004__b7840202811258">Modify Backup Policy</strong> &gt; <strong id="rds_08_0004__b19840102862512">Configure Same-Region Backup Policy</strong>. On the displayed page, you can view the existing backup policy. If you want to modify the policy, adjust the values of the following parameters:</span><p><ul id="rds_08_0004__ul997816292518"><li id="rds_08_0004__li1552111716714"><strong id="rds_08_0004__b191031956172813">Retention Period</strong>: It indicates how many days your automated full backups and binlog backups can be retained. The retention period is from 1 to 732 days and the default value is 7.<ul id="rds_08_0004__ul12918172019711"><li id="rds_08_0004__li19186201876">Extending the retention period enhances data availability.</li><li id="rds_08_0004__li15918920679">Reducing the retention period takes effect for existing backups. Any backups (except manual backups) that have expired will be automatically deleted. Exercise caution when performing this operation.</li></ul>
<p id="rds_08_0004__p19764195613270"><strong id="rds_08_0004__b144082411299">Automatic deletion policy for full backups:</strong></p>
<p id="rds_08_0004__p18951133285">To ensure data integrity, the system keeps the most recent backup that has exceeded the retention period during automatic deletions. This ensures that data within the retention period can still be restored.</p>
<p id="rds_08_0004__p1295111315289">For example, if <strong id="rds_08_0004__b16234162764116">Backup Cycle</strong> was set to <strong id="rds_08_0004__b72341827114115">Monday</strong> and <strong id="rds_08_0004__b1223442717410">Tuesday</strong> and <strong id="rds_08_0004__b11234172704119">Retention Period</strong> was set to <strong id="rds_08_0004__b20234162716415">2</strong>, the deletion behavior is as follows:</p>
<ul id="rds_08_0004__ul17957135285"><li id="rds_08_0004__li9951913192816">The full backup created on Monday is automatically deleted on Thursday.<p id="rds_08_0004__p2959131288"><a name="rds_08_0004__li9951913192816"></a><a name="li9951913192816"></a>The full backup created on Monday expires on Wednesday, but according to the deletion policy, the system retains the most recent full backup that has exceeded the retention period. So it is retained until a new backup expires. The next full backup is created on Tuesday and expires on Thursday. Therefore, on Thursday, the Monday backup is deleted and the Tuesday backup is retained.</p>
</li><li id="rds_08_0004__li4952013112814">The full backup created on Tuesday is automatically deleted on Wednesday of the following week.<p id="rds_08_0004__p695121319285"><a name="rds_08_0004__li4952013112814"></a><a name="li4952013112814"></a>The backup generated on Tuesday will expire on Thursday, but as it is the last backup, so it will be retained until a new backup expires. The next backup will be generated on the next Monday and will expire on the next Wednesday. So the full backup generated on Tuesday will not be automatically deleted until the next Wednesday.</p>
</li></ul>
</li><li id="rds_08_0004__li1823554941314"><strong id="rds_08_0004__b142651133163811">Automatic deletion policy for binlog backups:</strong><p id="rds_08_0004__p3563528121418">To ensure data integrity, the system keeps the binlog backup of the previous day when the full backup is deleted. This ensures that data within the retention period can still be restored.</p>
</li><li id="rds_08_0004__li58251931163011"><strong id="rds_08_0004__b1590142654216">Time Window</strong>: Set it to a one-hour period the backup will be scheduled, such as 01:00-02:00 or 12:00-13:00. It indicates when the backup starts, not the duration of the entire backup task. The backup duration depends on the data volume of your instance.<div class="note" id="rds_08_0004__note61331205313"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0004__p10133300318">To minimize potential impact on workloads, set the time window to off-peak hours. The backup time window is saved using the UTC time zone of your local browser. It changes with the time zone if the DST or standard time is switched.</p>
</div></div>
</li><li id="rds_08_0004__li84351625114113"><strong id="rds_08_0004__b71101536103820">Backup Cycle</strong>: All options are selected by default, but you can change it. Select at least one day of the week.</li></ul>
</p></li><li id="rds_08_0004__li4165489892826"><span>Click <strong id="rds_08_0004__b84235270695330">OK</strong>.</span></li></ol>
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</div>
<div class="section" id="rds_08_0013__section20885393272"><h4 class="sectiontitle">Constraints</h4><ul id="rds_08_0013__ul198975617275"><li id="rds_08_0013__li118919569275">If the DB instance status is <span class="uicontrol" id="rds_08_0013__uicontrol141611723659"><b>Abnormal</b></span>, the reboot may fail.</li><li id="rds_08_0013__li89014562277">Rebooting DB instances will cause service interruptions. During the reboot process, the DB instance status is <span class="uicontrol" id="rds_08_0013__uicontrol107949271176"><b>Rebooting</b></span>.</li><li id="rds_08_0013__li1884145010295">Rebooting DB instances will cause instance unavailability and clear cached memory. To prevent traffic congestion during peak hours, you are advised to reboot DB instances during off-peak hours.</li></ul>
</div>
<div class="section" id="rds_08_0013__s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0013__o2173078bb42c41a0b711d64c49e2565d"><li id="rds_08_0013__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0013__li146168481712"><span>Click <span><img id="rds_08_0013__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0013__li96167481711"><span>Click <strong id="rds_08_0013__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0013__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0013__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0013__l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="rds_08_0013__uicontrol1861825703142627"><b>Instances</b></span> page, locate the target DB instance, or click <span><img id="rds_08_0013__image2099112213211" src="en-us_image_0000002492863369.png"></span> and then locate the target read replica. Choose <span class="menucascade" id="rds_08_0013__menucascade2061980365143037"><b><span class="uicontrol" id="rds_08_0013__uicontrol589994428143037">More</span></b> &gt; <b><span class="uicontrol" id="rds_08_0013__uicontrol1840443335143037">Reboot</span></b></span> in the <span class="uicontrol" id="rds_08_0013__uicontrol1164294695143048"><b>Operation</b></span> column.</span><p><p id="rds_08_0013__p145731244163811">Alternatively, click the target DB instance on the <span class="uicontrol" id="rds_08_0013__uicontrol163198351101"><b>Instances</b></span> page to go to the <strong id="rds_08_0013__b1062821313114">Overview</strong> page. Click <span><img id="rds_08_0013__image971191117428" src="en-us_image_0000002500427729.png"></span> and choose <strong id="rds_08_0013__b188291488115">Reboot</strong> in the upper right corner.</p>
<div class="section" id="rds_08_0013__s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0013__o2173078bb42c41a0b711d64c49e2565d"><li id="rds_08_0013__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0013__li146168481712"><span>Click <span><img id="rds_08_0013__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0013__li96167481711"><span>Click <strong id="rds_08_0013__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0013__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0013__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0013__l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="rds_08_0013__uicontrol1861825703142627"><b>Instances</b></span> page, locate the target DB instance, or click <span><img id="rds_08_0013__image2099112213211" src="en-us_image_0000002492863369.png"></span> and then locate the target read replica. Choose <span class="menucascade" id="rds_08_0013__menucascade2061980365143037"><b><span class="uicontrol" id="rds_08_0013__uicontrol589994428143037">More</span></b> &gt; <b><span class="uicontrol" id="rds_08_0013__uicontrol1840443335143037">Reboot</span></b></span> in the <span class="uicontrol" id="rds_08_0013__uicontrol1164294695143048"><b>Operation</b></span> column.</span><p><p id="rds_08_0013__p145731244163811">Alternatively, click the target DB instance on the <span class="uicontrol" id="rds_08_0013__uicontrol163198351101"><b>Instances</b></span> page to go to the <strong id="rds_08_0013__b764175593510">Summary</strong> page. Click <span><img id="rds_08_0013__image971191117428" src="en-us_image_0000002500427729.png"></span> and choose <strong id="rds_08_0013__b188291488115">Reboot</strong> in the upper right corner.</p>
<p id="rds_08_0013__p695624210389">For primary/standby DB instances, if you reboot the primary DB instance, the standby DB instance is also rebooted automatically.</p>
</p></li><li id="rds_08_0013__li331123913580"><span>In the displayed dialog box, click <span class="uicontrol" id="rds_08_0013__uicontrol1228584516465"><b>Yes</b></span>.</span></li><li id="rds_08_0013__li53158765111855"><span>Refresh the DB instance list and view the status of the DB instance. If its status is <strong id="rds_08_0013__b842352706165735">Available</strong>, it has rebooted successfully.</span></li></ol>
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<a name="rds_08_0025"></a><a name="rds_08_0025"></a>
<h1 class="topictitle1">Introduction to Instance Overview</h1>
<div id="body0000002356610314"><p id="rds_08_0025__p15661121717226">On the <strong id="rds_08_0025__b43714296310">Overview</strong> page, you can get knowledge of the overall status of your RDS for MySQL instance, including alarms, intelligent anomaly diagnosis, and key performance metrics. Intelligent anomaly diagnosis uses operational data analytics and intelligent algorithms to access instance health, and provides you with solutions and suggestions for handling detected exceptions.</p>
<div class="section" id="rds_08_0025__section10467719184217"><h4 class="sectiontitle">Functions</h4><p id="rds_08_0025__p711911382141"><a href="#rds_08_0025__table29401349134416">Table 1</a> lists the functions provided on the <strong id="rds_08_0025__b1941194710916">Overview</strong> page.</p>
<div id="body0000002356610314"><p id="rds_08_0025__p15661121717226">On the <strong id="rds_08_0025__b132489320361">Summary</strong> page, you can get knowledge of the overall status of your RDS for MySQL instance, including alarms, intelligent anomaly diagnosis, and key performance metrics. Intelligent anomaly diagnosis uses operational data analytics and intelligent algorithms to access instance health, and provides you with solutions and suggestions for handling detected exceptions.</p>
<div class="section" id="rds_08_0025__section10467719184217"><h4 class="sectiontitle">Functions</h4><p id="rds_08_0025__p711911382141"><a href="#rds_08_0025__table29401349134416">Table 1</a> lists the functions provided on the <strong id="rds_08_0025__b2038014134365">Summary</strong> page.</p>
<div class="tablenoborder"><a name="rds_08_0025__table29401349134416"></a><a name="table29401349134416"></a><table cellpadding="4" cellspacing="0" summary="" id="rds_08_0025__table29401349134416" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Function description</caption><thead align="left"><tr id="rds_08_0025__row189414493449"><th align="left" class="cellrowborder" valign="top" width="20.23%" id="mcps1.3.2.3.2.3.1.1"><p id="rds_08_0025__p39417499446"><strong id="rds_08_0025__b1615222191211">Function</strong></p>
</th>
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</table>
</div>
</div>
<div class="section" id="rds_08_0025__en-us_topic_0000001372916221_section1984395564920"><h4 class="sectiontitle">Instance Information</h4><ol id="rds_08_0025__en-us_topic_0000001372916221_ol105521739133114"><li id="rds_08_0025__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0025__li146168481712"><span>Click <span><img id="rds_08_0025__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0025__li96167481711"><span>Click <strong id="rds_08_0025__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0025__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0025__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0025__en-us_topic_0000001372916221_li1426913204172"><span>On the <strong id="rds_08_0025__b177211457578">Instances</strong> page, click the target instance name to go to the <strong id="rds_08_0025__b177215456573">Overview</strong> page.</span></li><li id="rds_08_0025__en-us_topic_0000001372916221_li499974911328"><span>In the <strong id="rds_08_0025__b745010131584">Instance Information</strong> area, check the instance information and modify the instance as required.</span></li></ol>
<div class="section" id="rds_08_0025__en-us_topic_0000001372916221_section1984395564920"><h4 class="sectiontitle">Instance Information</h4><ol id="rds_08_0025__en-us_topic_0000001372916221_ol105521739133114"><li id="rds_08_0025__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0025__li146168481712"><span>Click <span><img id="rds_08_0025__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0025__li96167481711"><span>Click <strong id="rds_08_0025__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0025__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0025__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0025__en-us_topic_0000001372916221_li1426913204172"><span>On the <strong id="rds_08_0025__b177211457578">Instances</strong> page, click the target instance name to go to the <strong id="rds_08_0025__b1537013186366">Summary</strong> page.</span></li><li id="rds_08_0025__en-us_topic_0000001372916221_li499974911328"><span>In the <strong id="rds_08_0025__b745010131584">Instance Information</strong> area, check the instance information and modify the instance as required.</span></li></ol>
</div>
<div class="section" id="rds_08_0025__section154291930142716"><h4 class="sectiontitle">Alarms</h4><p id="rds_08_0025__p228165813813">In the <strong id="rds_08_0025__b1228342175910">Alarms</strong> area, check alarm information of your instance.</p>
<p id="rds_08_0025__p1458817191716">Based on the configured alarm rules, you can see active alarms of your instance, including alarms in the <strong id="rds_08_0025__b12851131127">Alarm</strong> (metric) or <strong id="rds_08_0025__b485431925">Triggered</strong> (event) state.</p>
@ -201,7 +201,7 @@
</div>
<div class="section" id="rds_08_0025__section173664580920"><h4 class="sectiontitle">Storage &amp; Backup</h4><p id="rds_08_0025__p6290838106">In the <strong id="rds_08_0025__b11130188121916">Storage &amp; Backup</strong> area, you can check the storage space usage and backup space usage of your instance, enable disk encryption, and scale up storage space.</p>
<ul id="rds_08_0025__ul315224411417"><li id="rds_08_0025__li1688331891620">Files that occupy the storage space include data files, log files, and other temporary files. To check the distribution and changes of used storage, see <a href="rds_08_0028.html">Managing Storage Capacity</a>.</li><li id="rds_08_0025__li1857910915304">After an instance is purchased, the disk encryption status and the key cannot be changed.<p id="rds_08_0025__p1785775923212"><a name="rds_08_0025__li1857910915304"></a><a name="li1857910915304"></a>If you enable disk encryption when purchasing an instance, the new storage space after scale-up still uses the original encryption key. Keep the key secure. Once the key is disabled, deleted, or frozen, your instance will become inaccessible.</p>
</li><li id="rds_08_0025__li43932215330">As workload data increases, the storage capacity of your instance may be insufficient. To scale up the storage space, see <a href="en-us_topic_scale_cluster.html">Scaling up Storage Space</a>.</li><li id="rds_08_0025__li113075470153">Backups are stored as packages in OBS and occupy the backup space. If the free space RDS provides is used up, the additional space required will be billed.</li></ul>
</li><li id="rds_08_0025__li43932215330">As workload data increases, the storage capacity of your instance may be insufficient. To scale up the storage space, see <a href="en-us_topic_scale_cluster.html">Scaling Up Storage Space</a>.</li><li id="rds_08_0025__li113075470153">Backups are stored as packages in OBS and occupy the backup space. If the free space RDS provides is used up, the additional space required will be billed.</li></ul>
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<h1 class="topictitle1">Managing Real-Time Sessions</h1>
<div id="body0000002390170405"><div class="section" id="rds_08_0026__en-us_topic_0000001372555901_section4111051174014"><h4 class="sectiontitle">Scenarios</h4><p id="rds_08_0026__en-us_topic_0000001372555901_p58404544406">You can view current session statistics of your instance, identify abnormal sessions, and kill the sessions.</p>
</div>
<div class="section" id="rds_08_0026__en-us_topic_0000001372555901_section17696173774717"><h4 class="sectiontitle">Setting Slow Session Threshold</h4><ol id="rds_08_0026__en-us_topic_0000001372555901_ol105521739133114"><li id="rds_08_0026__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0026__li146168481712"><span>Click <span><img id="rds_08_0026__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0026__li96167481711"><span>Click <strong id="rds_08_0026__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0026__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0026__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0026__en-us_topic_0000001372555901_li1426913204172"><span>On the <strong id="rds_08_0026__b47016134516">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0026__en-us_topic_0000001372555901_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0026__b143232411517">DBA Assistant</strong> &gt; <strong id="rds_08_0026__b1433172416511">Real-Time Diagnosis</strong>.</span></li><li id="rds_08_0026__li0538112172519"><span>Click the <strong id="rds_08_0026__b2086811062913">Sessions</strong> tab. You can perform the following operations on this tab page:</span><p><ul id="rds_08_0026__ul109431127194616"><li id="rds_08_0026__li7943827124617">Viewing session statistics<p id="rds_08_0026__p1752161012269"><a name="rds_08_0026__li7943827124617"></a><a name="li7943827124617"></a>In the sessions statistics, you can view statistics on the slow sessions, active sessions, total sessions, long transaction sessions by user, access host, and database.</p>
<div class="section" id="rds_08_0026__en-us_topic_0000001372555901_section17696173774717"><h4 class="sectiontitle">Setting Slow Session Threshold</h4><ol id="rds_08_0026__en-us_topic_0000001372555901_ol105521739133114"><li id="rds_08_0026__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0026__li146168481712"><span>Click <span><img id="rds_08_0026__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0026__li96167481711"><span>Click <strong id="rds_08_0026__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0026__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0026__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0026__en-us_topic_0000001372555901_li1426913204172"><span>On the <strong id="rds_08_0026__b47016134516">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0026__en-us_topic_0000001372555901_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0026__b2382163521911">Sessions</strong> under <strong id="rds_08_0026__b538243519194">DBA Assistant</strong>.</span></li><li id="rds_08_0026__li0538112172519"><span>On the <strong id="rds_08_0026__b551771115910">Sessions</strong> page. You can perform the following operations on this tab page:</span><p><ul id="rds_08_0026__ul109431127194616"><li id="rds_08_0026__li7943827124617">Viewing session statistics<p id="rds_08_0026__p1752161012269"><a name="rds_08_0026__li7943827124617"></a><a name="li7943827124617"></a>In the sessions statistics, you can view statistics on the slow sessions, active sessions, total sessions, long transaction sessions by user, access host, and database.</p>
</li><li id="rds_08_0026__li155411536134616">Setting a slow session threshold<p id="rds_08_0026__p1674112622917"><a name="rds_08_0026__li155411536134616"></a><a name="li155411536134616"></a>Click <span><img id="rds_08_0026__image5442125210718" src="en-us_image_0000002422550952.png"></span> next to the <strong id="rds_08_0026__b11242114811337">Slow Session Threshold</strong> field. In the displayed dialog box, set a slow session threshold and click <strong id="rds_08_0026__b152422487335">OK</strong>. Sessions whose execution durations are greater than this threshold are automatically displayed.</p>
</li><li id="rds_08_0026__li179681342154612">Killing abnormal sessions<p id="rds_08_0026__p119643818304"><a name="rds_08_0026__li179681342154612"></a><a name="li179681342154612"></a>In the session list, you can view session details. You can also select the abnormal session you want to end and click <strong id="rds_08_0026__b18631649163612">Kill Session</strong> to recover the database.</p>
<p id="rds_08_0026__p83912351172">A maximum of 100 sessions can be killed at a time.</p>

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<h1 class="topictitle1">Viewing Performance Metrics of a DB Instance</h1>
<div id="body0000002390250297"><p id="rds_08_0027__p1839173075618">DBA Assistant allows you to view the performance metrics of your DB instance. Historical trends of performance metrics within a specified time period help you learn about the status and resource usage of your DB instance. If any alarm is reported, you can take actions timely.</p>
<div class="section" id="rds_08_0027__en-us_topic_0000001322368894_section31122507225"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0027__en-us_topic_0000001322368894_ol105521739133114"><li id="rds_08_0027__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0027__li146168481712"><span>Click <span><img id="rds_08_0027__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0027__li96167481711"><span>Click <strong id="rds_08_0027__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0027__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0027__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li1426913204172"><span>On the <strong id="rds_08_0027__b105131821729">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0027__b2419152614218">DBA Assistant</strong> &gt; <strong id="rds_08_0027__b5421172618216">Real-Time Diagnosis</strong>.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li15550224331"><span>Click the <strong id="rds_08_0027__b148995361522">Performance</strong> tab to view historical performance for each metric of your instance within the same time range on different days.</span><p><p id="rds_08_0027__p687485115543"></p>
<div class="section" id="rds_08_0027__en-us_topic_0000001322368894_section31122507225"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0027__en-us_topic_0000001322368894_ol105521739133114"><li id="rds_08_0027__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0027__li146168481712"><span>Click <span><img id="rds_08_0027__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0027__li96167481711"><span>Click <strong id="rds_08_0027__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0027__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0027__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li1426913204172"><span>On the <strong id="rds_08_0027__b105131821729">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0027__b5421172618216">Performance</strong> under <strong id="rds_08_0027__b2419152614218">DBA Assistant</strong>.</span></li><li id="rds_08_0027__en-us_topic_0000001322368894_li15550224331"><span>Check metric changes of your instance within the same time range on different days.</span><p><p id="rds_08_0027__p687485115543"></p>
</p></li></ol>
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</table>
</div>
</div>
<div class="section" id="rds_08_0028__en-us_topic_0000001372652665_section31122507225"><a name="rds_08_0028__en-us_topic_0000001372652665_section31122507225"></a><a name="en-us_topic_0000001372652665_section31122507225"></a><h4 class="sectiontitle">Viewing the Storage Overview</h4><ol id="rds_08_0028__en-us_topic_0000001372652665_ol105521739133114"><li id="rds_08_0028__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0028__li146168481712"><span>Click <span><img id="rds_08_0028__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0028__li96167481711"><span>Click <strong id="rds_08_0028__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0028__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0028__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li1426913204172"><span>On the <strong id="rds_08_0028__b9981173417712">Instances</strong> page, click the target DB instance name.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0028__b536916574128">DBA Assistant</strong> &gt; <strong id="rds_08_0028__b136985711214">Real-Time Diagnosis</strong>.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li15550224331"><span>Click the <strong id="rds_08_0028__b10187136114316">Storage Analysis</strong> tab to view storage usage. If your storage is insufficient, scale it up. Or you can <a href="rds_05_0039.html">enable storage autoscaling</a>.</span><p><p id="rds_08_0028__p09704138710">If the average daily increase in last week is 0 GB, the estimated available days of storage are unlimited and are not displayed.</p>
<div class="section" id="rds_08_0028__en-us_topic_0000001372652665_section31122507225"><a name="rds_08_0028__en-us_topic_0000001372652665_section31122507225"></a><a name="en-us_topic_0000001372652665_section31122507225"></a><h4 class="sectiontitle">Viewing the Storage Overview</h4><ol id="rds_08_0028__en-us_topic_0000001372652665_ol105521739133114"><li id="rds_08_0028__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0028__li146168481712"><span>Click <span><img id="rds_08_0028__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0028__li96167481711"><span>Click <strong id="rds_08_0028__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0028__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0028__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li1426913204172"><span>On the <strong id="rds_08_0028__b9981173417712">Instances</strong> page, click the target DB instance name.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0028__b1447625220">Storage Analysis</strong> under <strong id="rds_08_0028__b164719214225">DBA Assistant</strong>.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li15550224331"><span>Check your storage usage. If the storage is insufficient, scale it up. Or you can <a href="rds_05_0039.html">enable storage autoscaling</a>.</span><p><p id="rds_08_0028__p09704138710">If the average daily increase in last week is 0 GB, the estimated available days of storage are unlimited and are not displayed.</p>
</p></li></ol>
</div>
<div class="section" id="rds_08_0028__en-us_topic_0000001372652665_section188641051182316"><a name="rds_08_0028__en-us_topic_0000001372652665_section188641051182316"></a><a name="en-us_topic_0000001372652665_section188641051182316"></a><h4 class="sectiontitle">Tablespaces</h4><p id="rds_08_0028__en-us_topic_0000001372652665_p19968518103217">This function counts tables with abnormal tablespace growth, tables without primary keys, and tables without indexes. To use this function, subscribe to Intelligent O&amp;M first.</p>
<ol id="rds_08_0028__en-us_topic_0000001372652665_ol20421135810302"><li id="rds_08_0028__en-us_topic_0000001372652665_li1942110580304"><span>Click the <strong id="rds_08_0028__b2092821116502">Storage Analysis</strong> tab to view abnormal tables.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li12421658153015"><span>Click <strong id="rds_08_0028__b88593065012">Subscribe</strong>. In the displayed dialog box, you can learn about Intelligent O&amp;M functions and pricing.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li6422258143011"><span>After subscribing to Intelligent O&amp;M, view the table diagnosis results of your instance.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li936923793318"><span>Click <span><img id="rds_08_0028__en-us_topic_0000001372652665_image3576165493311" src="en-us_image_0000002390250337.png"></span> next to <strong id="rds_08_0028__b07945012565">Auto Diagnosis</strong>. In the displayed dialog box, configure the daily tablespace increase limit and click <strong id="rds_08_0028__b49571894571">OK</strong>.</span><p><p id="rds_08_0028__p198191117716">When the size of a single table is greater than the threshold, the system automatically filters the table and collects statistics on the number of such tables on the <strong id="rds_08_0028__b199311971349">Tablespaces</strong> page. The system filters tables once a day.</p>
<div class="section" id="rds_08_0028__en-us_topic_0000001372652665_section188641051182316"><a name="rds_08_0028__en-us_topic_0000001372652665_section188641051182316"></a><a name="en-us_topic_0000001372652665_section188641051182316"></a><h4 class="sectiontitle">Tablespaces</h4><p id="rds_08_0028__en-us_topic_0000001372652665_p19968518103217">This function counts tables with abnormal tablespace growth, tables without primary keys, and tables without indexes. To use this function, upgrade DBA Assistant first.</p>
<ol id="rds_08_0028__en-us_topic_0000001372652665_ol20421135810302"><li id="rds_08_0028__en-us_topic_0000001372652665_li1942110580304"><span>Click the <strong id="rds_08_0028__b2092821116502">Storage Analysis</strong> tab to view abnormal tables.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li12421658153015"><span>Click <strong id="rds_08_0028__b1348795510514">Upgrade DBA Assistant</strong>. In the displayed dialog box, you can learn about the enhanced features and billing rules.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li6422258143011"><span>After the upgrade is complete, view the table diagnosis results of your instance.</span></li><li id="rds_08_0028__en-us_topic_0000001372652665_li936923793318"><span>Click <span><img id="rds_08_0028__en-us_topic_0000001372652665_image3576165493311" src="en-us_image_0000002390250337.png"></span> next to <strong id="rds_08_0028__b07945012565">Auto Diagnosis</strong>. In the displayed dialog box, configure the daily tablespace increase limit and click <strong id="rds_08_0028__b49571894571">OK</strong>.</span><p><p id="rds_08_0028__p198191117716">When the size of a single table is greater than the threshold, the system automatically filters the table and collects statistics on the number of such tables on the <strong id="rds_08_0028__b199311971349">Tablespaces</strong> page. The system filters tables once a day.</p>
</p></li></ol>
</div>
<div class="section" id="rds_08_0028__en-us_topic_0000001372652665_section0680202312019"><a name="rds_08_0028__en-us_topic_0000001372652665_section0680202312019"></a><a name="en-us_topic_0000001372652665_section0680202312019"></a><h4 class="sectiontitle">Disk Space Distribution</h4><p id="rds_08_0028__en-us_topic_0000001372652665_p3196264207">You can view storage space distribution of your instance.</p>

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<ul id="rds_08_0029__ul1566205465714"><li id="rds_08_0029__li1660284312589">DBA Assistant analyzes error logs at regular intervals, parses deadlock information, and performs comprehensive deadlock analysis.</li><li id="rds_08_0029__li6602164395812">Dependent parameters:<ul id="rds_08_0029__ul10885134715812"><li id="rds_08_0029__li64361575911">The <strong id="rds_08_0029__b132200234369">innodb_deadlock_detect</strong> parameter must be set to <strong id="rds_08_0029__b3220122313361">ON</strong> (only for RDS for MySQL 5.7).</li><li id="rds_08_0029__li1266212540575">The <strong id="rds_08_0029__b16791953133620">innodb_print_all_deadlocks</strong> parameter must be set to <strong id="rds_08_0029__b1779753103612">ON</strong> and the <strong id="rds_08_0029__b1032975312231">log_error_verbosity</strong> parameter must be set to <strong id="rds_08_0029__b1532917536231">3</strong> (only for other versions than 5.7).</li></ul>
</li><li id="rds_08_0029__li8602194316582">Up to 10,000 records can be displayed.</li></ul>
</div>
<div class="section" id="rds_08_0029__en-us_topic_0000001322049006_section39181651134017"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0029__en-us_topic_0000001322049006_ol184041614194411"><li id="rds_08_0029__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0029__li146168481712"><span>Click <span><img id="rds_08_0029__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0029__li96167481711"><span>Click <strong id="rds_08_0029__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0029__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0029__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li1426913204172"><span>On the <strong id="rds_08_0029__b62278147505">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0029__b3135123713501">DBA Assistant</strong> &gt; <strong id="rds_08_0029__b11136537115016">Real-Time Diagnosis</strong>.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li15550224331"><span>Click the <strong id="rds_08_0029__b14742176165120">Locks &amp; Transactions</strong> tab and enter the administrator password to log in to the database.</span></li><li id="rds_08_0029__li9779165335516"><span>On the <span class="uicontrol" id="rds_08_0029__uicontrol14170114418212"><b>Locks &amp; Transactions</b></span> tab page, perform the following operations:</span><p><ul id="rds_08_0029__ul1531410465271"><li id="rds_08_0029__li9314194662714">Click the <strong id="rds_08_0029__b59031637172516">Metadata Locks</strong> tab, create a lock analysis task and check whether the instance has metadata locks.<p id="rds_08_0029__p1665132310915">By default, locks whose wait time is longer than 10s are displayed, but you can change this time if needed.</p>
<div class="section" id="rds_08_0029__en-us_topic_0000001322049006_section39181651134017"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0029__en-us_topic_0000001322049006_ol184041614194411"><li id="rds_08_0029__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0029__li146168481712"><span>Click <span><img id="rds_08_0029__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0029__li96167481711"><span>Click <strong id="rds_08_0029__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0029__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0029__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li1426913204172"><span>On the <strong id="rds_08_0029__b62278147505">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0029__b114269599306">Locks &amp; Transactions</strong> under <strong id="rds_08_0029__b1642695993011">DBA Assistant</strong>.</span></li><li id="rds_08_0029__en-us_topic_0000001322049006_li15550224331"><span>On the displayed page, enter the administrator password to log in to the database.</span></li><li id="rds_08_0029__li9779165335516"><span>On the <span class="uicontrol" id="rds_08_0029__uicontrol14170114418212"><b>Locks</b></span> tab page, perform the following operations:</span><p><ul id="rds_08_0029__ul1531410465271"><li id="rds_08_0029__li9314194662714">Click the <strong id="rds_08_0029__b59031637172516">Metadata Locks</strong> tab, create a lock analysis task and check whether the instance has metadata locks.<p id="rds_08_0029__p1665132310915">By default, locks whose wait time is longer than 10s are displayed, but you can change this time if needed.</p>
</li><li id="rds_08_0029__li1671101722810">Click the <strong id="rds_08_0029__b1434195915291">InnoDB Locks</strong> tab, create a lock analysis task and check whether the instance has InnoDB locks.<p id="rds_08_0029__p65481934592">By default, locks whose wait time is longer than 10s are displayed, but you can change this time if needed.</p>
</li><li id="rds_08_0029__li12636655122916">Click the <strong id="rds_08_0029__b1120612523310">Deadlock Analysis</strong> tab and create a lock analysis task. DBA Assistant analyzes the latest deadlock log returned by <strong id="rds_08_0029__b2196205114179">SHOW ENGINE INNODB STATUS</strong>. If there are multiple deadlocks, only the latest one is analyzed.<p id="rds_08_0029__p209011541996">You can only query lock analysis data of the past seven days.</p>
</li><li id="rds_08_0029__li181676129307">Click the <strong id="rds_08_0029__b16540175043414">Full Deadlock Analysis</strong> tab and enable <strong id="rds_08_0029__b127841637173510">Full Deadlock Analysis</strong>. DBA Assistant regularly examines error logs, extracts deadlock details from them, and conducts a full deadlock analysis.<p id="rds_08_0029__p146597715109">You can only query lock analysis data of the past seven days.</p>

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<h1 class="topictitle1">Viewing Slow Query Logs of a DB Instance</h1>
<div id="body0000002390250305"><div class="section" id="rds_08_0030__en-us_topic_0000001321892954_section16903343174812"><h4 class="sectiontitle">Scenarios</h4><p id="rds_08_0030__en-us_topic_0000001321892954_p031517461483"><strong id="rds_08_0030__b9793111193620">Slow Query Log</strong> displays a chart of SQL statements that are taking too long to execute and allows you to sort slow SQL statements by multiple dimensions, such as by user, host, or SQL template. It helps you quickly identify bottlenecks and improve instance performance.</p>
</div>
<div class="section" id="rds_08_0030__en-us_topic_0000001321892954_section835064165711"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0030__en-us_topic_0000001321892954_ol105521739133114"><li id="rds_08_0030__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0030__li146168481712"><span>Click <span><img id="rds_08_0030__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0030__li96167481711"><span>Click <strong id="rds_08_0030__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0030__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0030__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li1426913204172"><span>On the <strong id="rds_08_0030__b13896141916211">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0030__b91945237218">DBA Assistant</strong> &gt; <strong id="rds_08_0030__b51945231021">Historical Diagnosis</strong>.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li15550224331"><span>Click the <strong id="rds_08_0030__b63007591529">Slow Query Logs</strong> tab.</span><p><div class="note" id="rds_08_0030__en-us_topic_0000001321892954_note58245359497"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0030__en-us_topic_0000001321892954_p782512355499">Slow SQL Analysis needs to be purchased separately. To use this function, subscribe to Intelligent O&amp;M first.</p>
<div class="section" id="rds_08_0030__en-us_topic_0000001321892954_section835064165711"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0030__en-us_topic_0000001321892954_ol105521739133114"><li id="rds_08_0030__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0030__li146168481712"><span>Click <span><img id="rds_08_0030__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0030__li96167481711"><span>Click <strong id="rds_08_0030__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0030__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0030__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li1426913204172"><span>On the <strong id="rds_08_0030__b13896141916211">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0030__b8813749162511">SQL Analysis and Tuning</strong> under <strong id="rds_08_0030__b1781316495255">DBA Assistant</strong>.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li15550224331"><span>Click the <strong id="rds_08_0030__b63007591529">Slow Query Logs</strong> tab.</span><p><div class="note" id="rds_08_0030__en-us_topic_0000001321892954_note58245359497"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0030__en-us_topic_0000001321892954_p782512355499">Slow SQL Analysis needs to be purchased separately. To use this function, upgrade DBA Assistant first.</p>
</div></div>
</p></li><li id="rds_08_0030__en-us_topic_0000001321892954_li141321628124915"><span>Click <strong id="rds_08_0030__b217143320612">Subscribe</strong>. In the displayed dialog box, you can learn about Intelligent O&amp;M functions and pricing.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li817720210111"><span>After subscribing to Intelligent O&amp;M, view slow queries over time of your instance.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li892514115121"><span>You can view slow queries over time and you can see the slow log archive history for the last 1 hour, last 3 hours, last 12 hours, or a custom time period (spanning no more than one day).</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li318017061213"><span>View slow query log details and template statistics.</span><p><ul id="rds_08_0030__en-us_topic_0000001321892954_ul13989201710187"><li id="rds_08_0030__en-us_topic_0000001321892954_li598915179181">To export slow query log information, click <strong id="rds_08_0030__b153701117145">Export</strong>.</li><li id="rds_08_0030__en-us_topic_0000001321892954_li11989517131812">To view log export history, click <strong id="rds_08_0030__b154816356234">View Export List</strong>.</li></ul>
</p></li></ol>
</p></li><li id="rds_08_0030__en-us_topic_0000001321892954_li141321628124915"><span>Click <strong id="rds_08_0030__b7323111314475">Upgrade DBA Assistant</strong>. In the displayed dialog box, you can learn about the enhanced features and billing rules.</span></li><li id="rds_08_0030__en-us_topic_0000001321892954_li817720210111"><span>View slow queries over time and archived slow query logs in the last 1 hour, last 3 hours, last 12 hours, or a custom time period (spanning no more than one day).</span></li><li id="rds_08_0030__li14336133218170"><span>To export slow query log details or statistics, click the <strong id="rds_08_0030__b792506144020">Details</strong> or <strong id="rds_08_0030__b1940218920401">Statistics</strong> tab above the log list and click <strong id="rds_08_0030__b17610132684015">Export</strong> on the tab page.</span></li></ol>
</div>
<div class="section" id="rds_08_0030__section209063620248"><h4 class="sectiontitle">Follow-up Operations</h4><p id="rds_08_0030__p105461357152616">To view historical export records, do as follows:</p>
<ol id="rds_08_0030__ol1656107132716"><li id="rds_08_0030__li656573270">Above the log list, click the <strong id="rds_08_0030__b12746172214423">Details</strong> or <strong id="rds_08_0030__b10291421114213">Statistics</strong> tab.</li><li id="rds_08_0030__li155610716272">Click <strong id="rds_08_0030__b1079522984218">View All Export Records</strong>. The displayed dialog box shows all historical export records.</li></ol>
</div>
</div>
<div>

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<h1 class="topictitle1">Viewing Top SQL Statements of a DB Instance</h1>
<div id="body0000002356770246"><div class="section" id="rds_08_0031__en-us_topic_0000001373012989_section04246347547"><h4 class="sectiontitle">Scenarios</h4><p id="rds_08_0031__en-us_topic_0000001373012989_p9211534195210">Top SQL shows the SQL queries that have been contributed at most to database load. You can sort them by multiple dimensions.</p>
</div>
<div class="section" id="rds_08_0031__en-us_topic_0000001373012989_section13380145511548"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0031__en-us_topic_0000001373012989_ol1314114919495"><li id="rds_08_0031__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0031__li146168481712"><span>Click <span><img id="rds_08_0031__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0031__li96167481711"><span>Click <strong id="rds_08_0031__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0031__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0031__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li1426913204172"><span>On the <strong id="rds_08_0031__b13591547815">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0031__b18272756689">DBA Assistant</strong> &gt; <strong id="rds_08_0031__b827315616819">Historical Diagnosis</strong>.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li15550224331"><span>Choose <strong id="rds_08_0031__b033316176914">SQL Explorer</strong> &gt; <strong id="rds_08_0031__b675720241399">Top SQL</strong>.</span><p><div class="note" id="rds_08_0031__en-us_topic_0000001373012989_note58245359497"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0031__en-us_topic_0000001373012989_p15151026785">Top SQL needs to be purchased separately. To use this function, subscribe to Intelligent O&amp;M first.</p>
<div class="section" id="rds_08_0031__en-us_topic_0000001373012989_section13380145511548"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0031__en-us_topic_0000001373012989_ol1314114919495"><li id="rds_08_0031__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0031__li146168481712"><span>Click <span><img id="rds_08_0031__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0031__li96167481711"><span>Click <strong id="rds_08_0031__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0031__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0031__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li1426913204172"><span>On the <strong id="rds_08_0031__b13591547815">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0031__b86115603852615">SQL Analysis and Tuning</strong> under <strong id="rds_08_0031__b210071495952615">DBA Assistant</strong>.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li15550224331"><span>Click the <strong id="rds_08_0031__b1824833619531">Top SQL</strong> tab.</span><p><div class="note" id="rds_08_0031__en-us_topic_0000001373012989_note58245359497"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0031__en-us_topic_0000001373012989_p15151026785">Top SQL needs to be purchased separately. To use this function, upgrade DBA Assistant first.</p>
</div></div>
</p></li><li id="rds_08_0031__en-us_topic_0000001373012989_li5193822910"><span>Click <strong id="rds_08_0031__b2029883121012">Subscribe</strong>. In the displayed dialog box, learn about Intelligent O&amp;M functions and pricing.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li17785172615213"><span>After subscribing to Intelligent O&amp;M, view top SQL statements of your instance.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li517685511415"><span>You can view execution durations of the top SQL statements in the last 1 hour, last 3 hours, last 12 hours, or a custom time period (spanning no more than one day).</span></li></ol>
<p id="rds_08_0031__en-us_topic_0000001373012989_p173521128132419"></p>
</p></li><li id="rds_08_0031__en-us_topic_0000001373012989_li5193822910"><span>Click <strong id="rds_08_0031__b7323111314475">Upgrade DBA Assistant</strong>. In the displayed dialog box, you can learn about the enhanced features and billing rules.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li17785172615213"><span>After the upgrade is complete, view top SQL statements of your instance.</span></li><li id="rds_08_0031__en-us_topic_0000001373012989_li517685511415"><span>View execution durations of the top SQL statements in the last 1 hour, last 3 hours, last 6 hours, last 12 hours, or a custom time range (spanning no more than one day).</span></li></ol>
</div>
</div>
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<div class="section" id="rds_08_0032__en-us_topic_0000001372889673_section54382019134917"><h4 class="sectiontitle">Constraints</h4><ul id="rds_08_0032__en-us_topic_0000001372889673_ul139961419541"><li id="rds_08_0032__li680816054614">You need to enable <strong id="rds_08_0032__b1061361734918">Collect All SQL Statements</strong> before using SQL Insights.</li><li id="rds_08_0032__li1123174914616">After <strong id="rds_08_0032__b201552214517">Collect All SQL Statements</strong> is disabled, new SQL statements will not be collected anymore and the collected SQL data will be deleted.</li><li id="rds_08_0032__en-us_topic_0000001372889673_li16996114185414">If there is a buffer overrun, some data cannot be recorded.</li><li id="rds_08_0032__en-us_topic_0000001372889673_li13371738153318">Any SQL statement that exceeds 4,096 bytes will not be recorded by default.<p id="rds_08_0032__en-us_topic_0000001372889673_p193321841203319"><a name="rds_08_0032__en-us_topic_0000001372889673_li13371738153318"></a><a name="en-us_topic_0000001372889673_li13371738153318"></a>In RDS for MySQL 5.7.33.3 and later minor versions, you can set the <strong id="rds_08_0032__b171031649353">rds_sql_tracer_reserve_big_records</strong> parameter to <strong id="rds_08_0032__b118862301445">ON</strong> (which indicates that SQL statements containing more than 4,096 bytes are still recorded) on the <strong id="rds_08_0032__b47551954174015">Parameters</strong> page to remove this constraint. For details, see <a href="rds_configuration.html">Modifying Parameters</a>. RDS for MySQL 5.6 and 8.0 do not support this parameter.</p>
</li></ul>
</div>
<div class="section" id="rds_08_0032__en-us_topic_0000001372889673_section207001756171712"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0032__en-us_topic_0000001372889673_ol1314114919495"><li id="rds_08_0032__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0032__li146168481712"><span>Click <span><img id="rds_08_0032__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0032__li96167481711"><span>Click <strong id="rds_08_0032__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0032__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0032__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li1426913204172"><span>On the <strong id="rds_08_0032__b1451918249619">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0032__b13734112413100">DBA Assistant</strong> &gt; <strong id="rds_08_0032__b157341024121014">Historical Diagnosis</strong>.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li15550224331"><span>Click <strong id="rds_08_0032__b1451553020116">SQL Explorer</strong> and then <strong id="rds_08_0032__b1486053971110">SQL Insights</strong>.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li5525105051016"><span>Click <span><img id="rds_08_0032__en-us_topic_0000001372889673_image105251650121016" src="en-us_image_0000002390250489.png"></span> next to <strong id="rds_08_0032__b1192123932619">Collect All SQL Statements</strong>.</span><p><p id="rds_08_0032__en-us_topic_0000001372889673_p16263165111010">To disable this function, click <strong id="rds_08_0032__b126401057132913">Log Settings</strong> in the upper right corner, toggle off the <strong id="rds_08_0032__b2721311295">Collect All SQL Statements</strong> switch, and click <strong id="rds_08_0032__b39164472918">OK</strong>.</p>
<div class="section" id="rds_08_0032__en-us_topic_0000001372889673_section207001756171712"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0032__en-us_topic_0000001372889673_ol1314114919495"><li id="rds_08_0032__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0032__li146168481712"><span>Click <span><img id="rds_08_0032__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0032__li96167481711"><span>Click <strong id="rds_08_0032__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0032__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0032__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li1426913204172"><span>On the <strong id="rds_08_0032__b1451918249619">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0032__b27628151452615">SQL Analysis and Tuning</strong> under <strong id="rds_08_0032__b198501237752615">DBA Assistant</strong>.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li15550224331"><span>Click the <strong id="rds_08_0032__b14873828184110">SQL Insights</strong> tab.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li5525105051016"><span>Click <span><img id="rds_08_0032__en-us_topic_0000001372889673_image105251650121016" src="en-us_image_0000002390250489.png"></span> next to <strong id="rds_08_0032__b1192123932619">Collect All SQL Statements</strong>.</span><p><p id="rds_08_0032__en-us_topic_0000001372889673_p16263165111010">To disable this function, click <strong id="rds_08_0032__b126401057132913">Log Settings</strong> in the upper right corner, toggle off the switch, and click <strong id="rds_08_0032__b39164472918">OK</strong>.</p>
<div class="note" id="rds_08_0032__en-us_topic_0000001372889673_note19716143211125"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0032__en-us_topic_0000001372889673_p1071753216120">Collecting all SQL statements generates a performance loss of no more than 5%.</p>
</div></div>
</p></li><li id="rds_08_0032__en-us_topic_0000001372889673_li9952753184711"><span>Click <strong id="rds_08_0032__b1486213347524">Create Task</strong>. In the displayed dialog box, specify <strong id="rds_08_0032__b111546173546">Time Range</strong>, <strong id="rds_08_0032__b5652520185416">Dimension</strong>, and other configuration items, and click <strong id="rds_08_0032__b6832123113545">OK</strong>.</span></li><li id="rds_08_0032__en-us_topic_0000001372889673_li12605143520619"><span>In the task list, click <strong id="rds_08_0032__b1498191316332">Details</strong> in the <strong id="rds_08_0032__b271122713319">Operation</strong> column to view task details.</span></li></ol>

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<div id="body0000002356770242"><div class="section" id="rds_08_0035__section114891846887"><h4 class="sectiontitle">Scenarios</h4><p id="rds_08_0035__p18720193213219">You can start a diagnosis for your DB instance and subscribe to diagnosis reports.</p>
<ul id="rds_08_0035__ul01615523226"><li id="rds_08_0035__li616116528226"><a href="#rds_08_0035__en-us_topic_0000001373048845_section195706267423">Starting a Diagnosis</a>: You can perform an overall health diagnosis on your instance and view details of the current and historical diagnosis reports.</li><li id="rds_08_0035__li216125213226"><a href="#rds_08_0035__section1277716344571">Subscribing to Diagnosis Reports</a>: Simple Message Notification (SMN) can send diagnosis exception reports to the preset email address so that you can learn about the overall health status of your instance in real time.</li></ul>
</div>
<div class="section" id="rds_08_0035__en-us_topic_0000001373048845_section195706267423"><a name="rds_08_0035__en-us_topic_0000001373048845_section195706267423"></a><a name="en-us_topic_0000001373048845_section195706267423"></a><h4 class="sectiontitle">Starting a Diagnosis</h4><ol id="rds_08_0035__en-us_topic_0000001373048845_ol1314114919495"><li id="rds_08_0035__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0035__li146168481712"><span>Click <span><img id="rds_08_0035__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0035__li96167481711"><span>Click <strong id="rds_08_0035__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0035__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0035__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0035__en-us_topic_0000001373048845_li1426913204172"><span>On the <strong id="rds_08_0035__b1816141419536">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0035__en-us_topic_0000001373048845_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0035__b1678811302539">DBA Assistant</strong> &gt; <strong id="rds_08_0035__b878953014538">Historical Diagnosis</strong>.</span></li><li id="rds_08_0035__li84171617195"><span>Click the <strong id="rds_08_0035__b105219415402">Daily Reports</strong> tab.</span></li><li id="rds_08_0035__li07171945101018"><span>Click <span class="uicontrol" id="rds_08_0035__uicontrol28935211520"><b>Start Diagnosis</b></span>. Select a time range for the diagnosis. The time span is within one day.</span><p><div class="note" id="rds_08_0035__note68581208418"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0035__p15974821349">If you want to be notified of risks through email, see <a href="#rds_08_0035__section1277716344571">Subscribing to Diagnosis Reports</a>.</p>
<div class="section" id="rds_08_0035__en-us_topic_0000001373048845_section195706267423"><a name="rds_08_0035__en-us_topic_0000001373048845_section195706267423"></a><a name="en-us_topic_0000001373048845_section195706267423"></a><h4 class="sectiontitle">Starting a Diagnosis</h4><ol id="rds_08_0035__en-us_topic_0000001373048845_ol1314114919495"><li id="rds_08_0035__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0035__li146168481712"><span>Click <span><img id="rds_08_0035__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0035__li96167481711"><span>Click <strong id="rds_08_0035__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0035__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0035__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0035__en-us_topic_0000001373048845_li1426913204172"><span>On the <strong id="rds_08_0035__b1816141419536">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0035__en-us_topic_0000001373048845_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0035__b29323438239">Daily Reports</strong> under <strong id="rds_08_0035__b09321143142313">DBA Assistant</strong>.</span></li><li id="rds_08_0035__li07171945101018"><span>Click <span class="uicontrol" id="rds_08_0035__uicontrol28935211520"><b>Start Diagnosis</b></span>. Select a time range for the diagnosis. The time span is within one day.</span><p><div class="note" id="rds_08_0035__note68581208418"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="rds_08_0035__p15974821349">If you want to be notified of risks through email, see <a href="#rds_08_0035__section1277716344571">Subscribing to Diagnosis Reports</a>.</p>
</div></div>
</p></li><li id="rds_08_0035__li196281222015"><span>In the <span class="uicontrol" id="rds_08_0035__uicontrol20893172165217"><b>Diagnosis Dimensions</b></span> area, click <span class="uicontrol" id="rds_08_0035__uicontrol347714321758"><b>Slow SQL Analysis</b></span>, <strong id="rds_08_0035__b5947145094818">All SQL Analysis</strong>, or <span class="uicontrol" id="rds_08_0035__uicontrol48981735252"><b>Performance &amp; Storage</b></span> to view diagnosis report details.</span></li><li id="rds_08_0035__li11186194883815"><span>You can also view historical diagnosis reports or download a report to your local PC.</span><p><ul id="rds_08_0035__ul10881222125916"><li id="rds_08_0035__li172751484162">To view historical diagnosis reports, click <span class="uicontrol" id="rds_08_0035__en-us_topic_0000001373048845_uicontrol12436198144516"><b>View History</b></span> in the upper right corner of the page.</li><li id="rds_08_0035__li1969516178615">To download a report to your local PC, click <span class="uicontrol" id="rds_08_0035__uicontrol3115358541"><b>Download</b></span> in the upper right corner of the page.</li></ul>
</p></li></ol>
</div>
<div class="section" id="rds_08_0035__section1277716344571"><a name="rds_08_0035__section1277716344571"></a><a name="section1277716344571"></a><h4 class="sectiontitle">Subscribing to Diagnosis Reports</h4><ol id="rds_08_0035__ol1498701711134"><li id="rds_08_0035__li8400165619132"><span>On the <strong id="rds_08_0035__b014404119569">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0035__li194011560139"><span>In the navigation pane, choose <strong id="rds_08_0035__b701714131">DBA Assistant</strong> &gt; <strong id="rds_08_0035__b1505456517">Historical Diagnosis</strong>.</span></li><li id="rds_08_0035__en-us_topic_0000001373048845_li19870241152510"><span>Click the <strong id="rds_08_0035__b58286482539">Daily Reports</strong> tab.</span></li><li id="rds_08_0035__li1229573510813"><span>In the upper right corner of the page, click <span class="uicontrol" id="rds_08_0035__uicontrol82951235381"><b>Subscribe</b></span> and set subscription parameters. For details about the parameters, see <a href="#rds_08_0035__table15405957124920">Table 1</a>.</span><p><div class="fignone" id="rds_08_0035__fig32131421185817"><span class="figcap"><b>Figure 1 </b>Subscribe to Daily Report</span><br><span><img id="rds_08_0035__image1565018289222" src="en-us_image_0000002378668778.png"></span></div>
<div class="tablenoborder"><a name="rds_08_0035__table15405957124920"></a><a name="table15405957124920"></a><table cellpadding="4" cellspacing="0" summary="" id="rds_08_0035__table15405957124920" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Subscription parameters</caption><thead align="left"><tr id="rds_08_0035__row11406135754913"><th align="left" class="cellrowborder" valign="top" width="16.73%" id="mcps1.3.3.2.4.2.2.2.3.1.1"><p id="rds_08_0035__p19406155714914"><strong id="rds_08_0035__b74702205816">Parameter</strong></p>
<div class="section" id="rds_08_0035__section1277716344571"><a name="rds_08_0035__section1277716344571"></a><a name="section1277716344571"></a><h4 class="sectiontitle">Subscribing to Diagnosis Reports</h4><ol id="rds_08_0035__ol1498701711134"><li id="rds_08_0035__li8400165619132"><span>On the <strong id="rds_08_0035__b014404119569">Instances</strong> page, click the DB instance name.</span></li><li id="rds_08_0035__li194011560139"><span>In the navigation pane, choose <strong id="rds_08_0035__b18541312122411">Daily Reports</strong> under <strong id="rds_08_0035__b135411312182411">DBA Assistant</strong>.</span></li><li id="rds_08_0035__li1229573510813"><span>In the upper right corner of the page, click <span class="uicontrol" id="rds_08_0035__uicontrol82951235381"><b>Subscribe to Daily Reports</b></span> and set subscription parameters. For details about the parameters, see <a href="#rds_08_0035__table15405957124920">Table 1</a>.</span><p>
<div class="tablenoborder"><a name="rds_08_0035__table15405957124920"></a><a name="table15405957124920"></a><table cellpadding="4" cellspacing="0" summary="" id="rds_08_0035__table15405957124920" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Subscription parameters</caption><thead align="left"><tr id="rds_08_0035__row11406135754913"><th align="left" class="cellrowborder" valign="top" width="16.73%" id="mcps1.3.3.2.3.2.1.2.3.1.1"><p id="rds_08_0035__p19406155714914"><strong id="rds_08_0035__b74702205816">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="83.27%" id="mcps1.3.3.2.4.2.2.2.3.1.2"><p id="rds_08_0035__p134061757164916"><strong id="rds_08_0035__b45074415816">Description</strong></p>
<th align="left" class="cellrowborder" valign="top" width="83.27%" id="mcps1.3.3.2.3.2.1.2.3.1.2"><p id="rds_08_0035__p134061757164916"><strong id="rds_08_0035__b45074415816">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="rds_08_0035__row14406195714910"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.4.2.2.2.3.1.1 "><p id="rds_08_0035__p1840615575497">Subscription</p>
<tbody><tr id="rds_08_0035__row14406195714910"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.3.2.1.2.3.1.1 "><p id="rds_08_0035__p1840615575497">Subscription</p>
</td>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.4.2.2.2.3.1.2 "><p id="rds_08_0035__p15406105720497">Select <strong id="rds_08_0035__b68301824135910">By topic</strong> or <strong id="rds_08_0035__b16409144318595">By email</strong>.</p>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.3.2.1.2.3.1.2 "><p id="rds_08_0035__p15406105720497">Select <strong id="rds_08_0035__b68301824135910">By topic</strong> or <strong id="rds_08_0035__b16409144318595">By email</strong>.</p>
</td>
</tr>
<tr id="rds_08_0035__row114061957184918"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.4.2.2.2.3.1.1 "><p id="rds_08_0035__p1340713579491">Topics</p>
<tr id="rds_08_0035__row114061957184918"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.3.2.1.2.3.1.1 "><p id="rds_08_0035__p1340713579491">Topics</p>
</td>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.4.2.2.2.3.1.2 "><p id="rds_08_0035__p154074570498">A topic is used to publish messages and subscribe to notifications. It serves as a message transmission channel between publishers and subscribers.</p>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.3.2.1.2.3.1.2 "><p id="rds_08_0035__p154074570498">A topic is used to publish messages and subscribe to notifications. It serves as a message transmission channel between publishers and subscribers.</p>
</td>
</tr>
<tr id="rds_08_0035__row133191857205215"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.4.2.2.2.3.1.1 "><p id="rds_08_0035__p13201357185214">Email Addresses</p>
<tr id="rds_08_0035__row133191857205215"><td class="cellrowborder" valign="top" width="16.73%" headers="mcps1.3.3.2.3.2.1.2.3.1.1 "><p id="rds_08_0035__p13201357185214">Email Addresses</p>
</td>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.4.2.2.2.3.1.2 "><p id="rds_08_0035__p332045715528">If you select <strong id="rds_08_0035__b1394948399">By email</strong> for <strong id="rds_08_0035__b4920115010911">Subscription</strong>, you need to specify <strong id="rds_08_0035__b14614322121017">Email Addresses</strong>.</p>
<td class="cellrowborder" valign="top" width="83.27%" headers="mcps1.3.3.2.3.2.1.2.3.1.2 "><p id="rds_08_0035__p332045715528">If you select <strong id="rds_08_0035__b1394948399">By email</strong> for <strong id="rds_08_0035__b4920115010911">Subscription</strong>, you need to specify <strong id="rds_08_0035__b14614322121017">Email Addresses</strong>.</p>
<p id="rds_08_0035__p1476418596155">An email will be sent to the specified email address only when risks are identified after a diagnosis is performed. You can enter up to 15 email addresses and separate each email address with a semicolon (;).</p>
</td>
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<h1 class="topictitle1">Function Overview</h1>
<div id="body0000002356770234"><div class="section" id="rds_08_0037__section589518214389"><h4 class="sectiontitle">Description</h4><p id="rds_08_0037__p935655144714">DBA Assistant provides visualized database O&amp;M and intelligent diagnosis for developers and database administrators (DBAs), making database O&amp;M easy and efficient. By analyzing alarms, resources, health data, performance metrics, and storage usage, it helps users quickly locate faults and keep track of instance status.</p>
</div>
<div class="section" id="rds_08_0037__section8592044115319"><h4 class="sectiontitle">Scenarios</h4><ul id="rds_08_0037__ul14877519531"><li id="rds_08_0037__li178735112534">Setting a slow session threshold can help you quickly identify abnormal sessions and kill the sessions when an exception occurs in your instance, so that your instance can recover quickly and ensure database availability.</li><li id="rds_08_0037__li4101185101918">If your DB instance is unstable due to a large number of concurrent SQL requests from new services, you can set concurrency control rules for SQL statements to limit concurrent SQL statements and ensure instance stability.</li><li id="rds_08_0037__li783023453911">If your instance storage is full, you can learn about the storage usage and disk space distribution on the <strong id="rds_08_0037__b16968446173720">Storage Analysis</strong> page. You can enable storage autoscaling. When the available storage of your instance drops to the threshold, autoscaling is triggered. For details, see <a href="rds_05_0039.html">Storage Autoscaling</a>.</li><li id="rds_08_0037__li1547117745619">You can configure auto flow control to limit active connections in high burst traffic or abnormal read/write scenarios to ensure the availability of core workloads.</li></ul>
<div class="section" id="rds_08_0037__section8592044115319"><h4 class="sectiontitle">Scenarios</h4><ul id="rds_08_0037__ul14877519531"><li id="rds_08_0037__li178735112534">Setting a slow session threshold can help you quickly identify abnormal sessions and kill the sessions when an exception occurs in your instance, so that your instance can recover quickly and ensure database availability.</li><li id="rds_08_0037__li4101185101918">If your DB instance is unstable due to a large number of concurrent SQL requests from new services, you can set SQL throttling rules for SQL statements to limit concurrent SQL statements and ensure instance stability.</li><li id="rds_08_0037__li783023453911">If your instance storage is full, you can learn about the storage usage and disk space distribution on the <strong id="rds_08_0037__b16968446173720">Storage Analysis</strong> page. You can enable storage autoscaling. When the available storage of your instance drops to the threshold, autoscaling is triggered. For details, see <a href="rds_05_0039.html">Storage Autoscaling</a>.</li><li id="rds_08_0037__li1547117745619">You can configure auto flow control to limit active connections in high burst traffic or abnormal read/write scenarios to ensure the availability of core workloads.</li></ul>
</div>
<div class="section" id="rds_08_0037__section339904017416"><h4 class="sectiontitle">Functions</h4><p id="rds_08_0037__p3504204419810"><a href="#rds_08_0037__table3237102219912">Table 1</a> lists the functions supported by DBA Assistant.</p>
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</thead>
<tbody><tr id="rds_08_0037__row122371922290"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p11303721141010">Sessions</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p104476402068">The <strong id="rds_08_0037__b14311713132716">Sessions</strong> page displays slow sessions, active sessions, and total sessions. You can quickly filter slow sessions or active sessions by user, host IP address, or database name. Kill Session and Concurrency Control can be used for urgent instance recovery to ensure database availability.</p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p104476402068">It displays session statistics. You can quickly filter slow sessions or active sessions by user, host IP address, or database name. Kill Session and SQL Throttling can be used for urgent instance recovery to ensure database availability.</p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p1403650667"><a href="rds_08_0026.html">Managing Real-Time Sessions</a></p>
</td>
</tr>
<tr id="rds_08_0037__row132371225912"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p112372223915">Performance</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p1025104870">The <strong id="rds_08_0037__b1864344865912">Performance</strong> page displays key metrics of your instance and provides metric comparison between different days. You can keep track of metric changes and detect exceptions in a timely manner. </p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p1025104870">It displays key metrics of your instance and provides metric comparison between different days. You can keep track of metric changes and detect exceptions in a timely manner. </p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p1653411419319"><a href="rds_08_0027.html">Viewing Performance Metrics of a DB Instance</a></p>
</td>
</tr>
<tr id="rds_08_0037__row1960515318106"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p6606653201016">Storage Analysis</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p284220376712">Storage occupied by data and logs and historical changes of storage usage are important for database performance. The <strong id="rds_08_0037__b113983114311">Storage Analysis</strong> page displays storage overview and disk space distribution of your instance. In addition, DBA Assistant can estimate the available days of your storage based on historical data and intelligent algorithms, so that you can scale up storage in a timely manner. <strong id="rds_08_0037__b1416645416106">Scale</strong>, <strong id="rds_08_0037__b5697104209">Abnormal Tables</strong>, <strong id="rds_08_0037__b269744509">Top 50 Databases</strong>, and <strong id="rds_08_0037__b269719418016">Top 50 Tables</strong> are also available on this page.</p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p284220376712">Storage occupied by data and logs and historical changes of storage usage are important for database performance. DBA Assistant shows the storage summary and storage space usages of your instance. It estimates the available days of your storage based on historical data and intelligent algorithms, helping you scale up storage before it runs out. <strong id="rds_08_0037__b269744509">Top 50 Databases</strong>, and <strong id="rds_08_0037__b269719418016">Top 50 Tables</strong> are also available on this page.</p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p16782361815"><a href="rds_08_0028.html">Managing Storage Capacity</a></p>
</td>
</tr>
<tr id="rds_08_0037__row1961133419817"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p79611834687">Locks &amp; Transactions</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p696112346815">The <strong id="rds_08_0037__b56541619210">Locks &amp; Transactions</strong> page displays metadata locks and InnoDB locks. You can manage blocked transactions, optimize your workloads, and reduce lock conflicts based on the lock information.</p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p696112346815">It analyzes metadata locks and InnoDB locks. You can manage blocked transactions using metadata lock views and InnoDB lock topologies to reduce lock conflicts.</p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p79619342816"><a href="rds_08_0029.html">Managing Locks &amp; Transactions</a></p>
</td>
</tr>
<tr id="rds_08_0037__row103251854191010"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p18325105420102">Slow Query Log</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p2098313168914">Displays slow queries within a specified time period. You can view top 5 slow query logs by user or IP address, sort statistics, and identify sources of slow SQL statements.</p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p2098313168914">It displays slow queries within a specified time period. You can sort top slow queries by user or client IP address, view slow query statistics, and sort them by specific dimensions to identify the sources of slow SQL queries.</p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p14534148319"><a href="rds_08_0030.html">Viewing Slow Query Logs of a DB Instance</a></p>
</td>
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<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><ul id="rds_08_0037__ul299617333360"><li id="rds_08_0037__li1996933183620"><a href="rds_08_0031.html">Viewing Top SQL Statements of a DB Instance</a></li><li id="rds_08_0037__li1996133153614"><a href="rds_08_0032.html">Creating a SQL Insights Task</a></li></ul>
</td>
</tr>
<tr id="rds_08_0037__row05371954201017"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p185377548100">Concurrency Control</p>
<tr id="rds_08_0037__row05371954201017"><td class="cellrowborder" valign="top" width="13.26%" headers="mcps1.3.3.3.2.4.1.1 "><p id="rds_08_0037__p185377548100">SQL Throttling</p>
</td>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p113783121108">Concurrency Control restricts the execution of SQL statements based on specified rules when there are SQL statements that cannot be optimized timely or a resource (for example, vCPU) bottleneck occurs.</p>
<td class="cellrowborder" valign="top" width="61.61%" headers="mcps1.3.3.3.2.4.1.2 "><p id="rds_08_0037__p113783121108">SQL Throttling restricts the execution of SQL statements based on specified rules when there are SQL statements that cannot be optimized timely or a resource (for example, vCPU) bottleneck occurs.</p>
</td>
<td class="cellrowborder" valign="top" width="25.130000000000003%" headers="mcps1.3.3.3.2.4.1.3 "><p id="rds_08_0037__p35347413311"><a href="rds_08_0033.html">Creating a SQL Throttling Rule</a></p>
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<div class="section" id="rds_08_0039__en-us_topic_0000002050947196_section128620234338"><h4 class="sectiontitle">Constraints</h4><ul id="rds_08_0039__en-us_topic_0000002050947196_ul20643149153312"><li id="rds_08_0039__en-us_topic_0000002050947196_li162211412113414">The snapshot of historical transactions only lists the transactions that are currently being executed. It does not include those that started and committed during a collection interval.</li><li id="rds_08_0039__en-us_topic_0000002050947196_li8643749163316">To collect historical transactions, enable <strong id="rds_08_0039__b1942151015516">Collect Slow Query Logs</strong> or <strong id="rds_08_0039__b12468327125513">Collect All SQL Statements</strong> first.</li><li id="rds_08_0039__en-us_topic_0000002050947196_li166431749173310">A maximum of 10,000 records generated in the past 7 days can be displayed.</li></ul>
</div>
<div class="section" id="rds_08_0039__section106651042193"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0039__en-us_topic_0000002050947196_ol19422105442113"><li id="rds_08_0039__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0039__li146168481712"><span>Click <span><img id="rds_08_0039__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0039__li96167481711"><span>Click <strong id="rds_08_0039__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0039__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0039__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li1426913204172"><span>On the <strong id="rds_08_0039__b12649205795710">Instances</strong> page, click the target instance name.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0039__b128842441710">DBA Assistant</strong> &gt; <strong id="rds_08_0039__b188520441516">Historical Diagnosis</strong>.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li15550224331"><span>Click the <strong id="rds_08_0039__b726414610211">Historical Transactions</strong> tab.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_li1352713295276"><span>In the upper part of the page, click <strong id="rds_08_0039__b920684217214">Log Settings</strong>, enable <strong id="rds_08_0039__b195925551337">Collect Slow Query Logs</strong> or <strong id="rds_08_0039__b330916313410">Collect All SQL Statements</strong>, and click <strong id="rds_08_0039__b67594915414">OK</strong>.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li111247282503"><span>Enable <strong id="rds_08_0039__b121413414419">Collect Historical Transactions</strong> and view historical transactions.</span></li></ol>
<div class="section" id="rds_08_0039__section106651042193"><h4 class="sectiontitle">Procedure</h4><ol id="rds_08_0039__en-us_topic_0000002050947196_ol19422105442113"><li id="rds_08_0039__li17616348171"><span>Log in to the management console.</span></li><li id="rds_08_0039__li146168481712"><span>Click <span><img id="rds_08_0039__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_08_0039__li96167481711"><span>Click <strong id="rds_08_0039__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_08_0039__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_08_0039__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li1426913204172"><span>On the <strong id="rds_08_0039__b12649205795710">Instances</strong> page, click the target instance name.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li499974911328"><span>In the navigation pane, choose <strong id="rds_08_0039__b203759336144835">Locks &amp; Transactions</strong> under <strong id="rds_08_0039__b163057864544835">DBA Assistant</strong>.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li15550224331"><span>Click the <strong id="rds_08_0039__b726414610211">Historical Transactions</strong> tab.</span></li><li id="rds_08_0039__en-us_topic_0000002050947196_en-us_topic_0000001322049006_li111247282503"><span>Enable <strong id="rds_08_0039__b121413414419">Collect Historical Transactions</strong> and view historical transactions.</span></li></ol>
</div>
<p id="rds_08_0039__p8060118"></p>
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<div class="section" id="rds_09_0024__section16434834184513"><h4 class="sectiontitle">Constraints</h4><ul id="rds_09_0024__ul1318015343496"><li id="rds_09_0024__li10181183414914">If the DB instance status is <span class="uicontrol" id="rds_09_0024__uicontrol14428162585413"><b>Abnormal</b></span>, the reboot may fail.</li><li id="rds_09_0024__li018143484911">Rebooting a DB instance will cause service interruptions. During this period, the DB instance status is <span class="uicontrol" id="rds_09_0024__uicontrol919172154118"><b>Rebooting</b></span>.</li><li id="rds_09_0024__li1684202664911">Rebooting DB instances will cause instance unavailability and clear cached memory. To prevent traffic congestion during peak hours, you are advised to reboot DB instances during off-peak hours.</li></ul>
</div>
<div class="section" id="rds_09_0024__en-us_topic_0192954097_s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="rds_09_0024__en-us_topic_0192954097_o2173078bb42c41a0b711d64c49e2565d"><li id="rds_09_0024__li17616348171"><span>Log in to the management console.</span></li><li id="rds_09_0024__li146168481712"><span>Click <span><img id="rds_09_0024__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_09_0024__li96167481711"><span>Click <strong id="rds_09_0024__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_09_0024__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_09_0024__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_09_0024__en-us_topic_0192954097_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="rds_09_0024__en-us_topic_0192954097_uicontrol1861825703142627"><b>Instances</b></span> page, locate the target DB instance, or click <span><img id="rds_09_0024__image2099112213211" src="en-us_image_0000002459664212.png"></span> in the front of a DB instance and then locate the target read replica. Choose <span class="menucascade" id="rds_09_0024__en-us_topic_0192954097_menucascade2061980365143037"><b><span class="uicontrol" id="rds_09_0024__uicontrol589994428143037">More</span></b> &gt; <b><span class="uicontrol" id="rds_09_0024__uicontrol1840443335143037">Reboot</span></b></span> in the <span class="uicontrol" id="rds_09_0024__en-us_topic_0192954097_uicontrol1164294695143048"><b>Operation</b></span> column.</span><p><p id="rds_09_0024__p145731244163811">Alternatively, click the target DB instance on the <span class="uicontrol" id="rds_09_0024__uicontrol163198351101"><b>Instances</b></span> page to go to the <strong id="rds_09_0024__b1062821313114">Overview</strong> page. Click <span><img id="rds_09_0024__image971191117428" src="en-us_image_0000002500515149.png"></span> and choose <strong id="rds_09_0024__b188291488115">Reboot</strong> in the upper right corner.</p>
<div class="section" id="rds_09_0024__en-us_topic_0192954097_s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="rds_09_0024__en-us_topic_0192954097_o2173078bb42c41a0b711d64c49e2565d"><li id="rds_09_0024__li17616348171"><span>Log in to the management console.</span></li><li id="rds_09_0024__li146168481712"><span>Click <span><img id="rds_09_0024__rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_09_0024__li96167481711"><span>Click <strong id="rds_09_0024__rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_09_0024__rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_09_0024__rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_09_0024__en-us_topic_0192954097_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="rds_09_0024__en-us_topic_0192954097_uicontrol1861825703142627"><b>Instances</b></span> page, locate the target DB instance, or click <span><img id="rds_09_0024__image2099112213211" src="en-us_image_0000002459664212.png"></span> in the front of a DB instance and then locate the target read replica. Choose <span class="menucascade" id="rds_09_0024__en-us_topic_0192954097_menucascade2061980365143037"><b><span class="uicontrol" id="rds_09_0024__uicontrol589994428143037">More</span></b> &gt; <b><span class="uicontrol" id="rds_09_0024__uicontrol1840443335143037">Reboot</span></b></span> in the <span class="uicontrol" id="rds_09_0024__en-us_topic_0192954097_uicontrol1164294695143048"><b>Operation</b></span> column.</span><p><p id="rds_09_0024__p145731244163811">Alternatively, click the target DB instance on the <span class="uicontrol" id="rds_09_0024__uicontrol163198351101"><b>Instances</b></span> page to go to the <strong id="rds_09_0024__b5322352612">Summary</strong> page. Click <span><img id="rds_09_0024__image971191117428" src="en-us_image_0000002500515149.png"></span> and choose <strong id="rds_09_0024__b188291488115">Reboot</strong> in the upper right corner.</p>
<p id="rds_09_0024__en-us_topic_0192954097_p695624210389">For primary/standby DB instances, if you reboot the primary DB instance, the standby DB instance is also rebooted automatically.</p>
</p></li><li id="rds_09_0024__en-us_topic_0192954097_li331123913580"><span>In the displayed dialog box, select a scheduled time, and click <span class="uicontrol" id="rds_09_0024__uicontrol12909172910109"><b>Yes</b></span>.</span></li><li id="rds_09_0024__en-us_topic_0192954097_li53158765111855"><span>Refresh the DB instance list and view the status of the DB instance. If its status is <strong id="rds_09_0024__en-us_topic_0192954097_b842352706165735">Available</strong>, it has rebooted successfully.</span></li></ol>
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<h1 class="topictitle1">Changing a Security Group</h1>
<div id="body8662426"><div class="section" id="rds_09_0026__rds_08_0003_section36712096194014"><h4 class="sectiontitle">Scenarios</h4><p id="rds_09_0026__rds_08_0003_p27667840173352">This section describes how to change the security group of a primary DB instance or read replica. For primary/standby DB instances, changing the security group of the primary DB instance will cause the security group of the standby DB instance to also be changed accordingly.</p>
</div>
<div class="section" id="rds_09_0026__rds_08_0003_section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="rds_09_0026__rds_08_0003_o3a2715f18c35409aa98d1b471dc7b5d3"><li id="rds_09_0026__rds_08_0003_li17616348171"><span>Log in to the management console.</span></li><li id="rds_09_0026__rds_08_0003_li146168481712"><span>Click <span><img id="rds_09_0026__rds_08_0003_rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_09_0026__rds_08_0003_li96167481711"><span>Click <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_09_0026__rds_08_0003_le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="rds_09_0026__rds_08_0003_b43610246918">Instances</strong> page, click the target primary DB instance or read replica.</span></li><li id="rds_09_0026__rds_08_0003_l2a5b3371b82b4bf0b87371149b3ffc1a"><span>On the <span class="uicontrol" id="rds_09_0026__rds_08_0003_uicontrol129475119718"><b>Overview</b></span> page, click <strong id="rds_09_0026__rds_08_0003_b10728173016315">Configure</strong> under <strong id="rds_09_0026__rds_08_0003_b20669101892918">Security Group</strong>.</span></li><li id="rds_09_0026__rds_08_0003_li10553132183112"><span>In the displayed dialog box, select one from the drop-down list.</span></li><li id="rds_09_0026__rds_08_0003_li7265815143216"><span>Click <strong id="rds_09_0026__rds_08_0003_b02712410311">OK</strong> to submit the modification.</span></li><li id="rds_09_0026__rds_08_0003_lde4afc21cfca4e758513b927fd3eb6bb"><span>Changing the security group takes 1 to 3 minutes. Click <span><img id="rds_09_0026__rds_08_0003_image06841349468" src="en-us_image_0000001145051618.png"></span> in the upper right corner on the <span class="uicontrol" id="rds_09_0026__rds_08_0003_uicontrol1616812353213"><b>Overview</b></span> page to view the results.</span></li></ol>
<div class="section" id="rds_09_0026__rds_08_0003_section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="rds_09_0026__rds_08_0003_o3a2715f18c35409aa98d1b471dc7b5d3"><li id="rds_09_0026__rds_08_0003_li17616348171"><span>Log in to the management console.</span></li><li id="rds_09_0026__rds_08_0003_li146168481712"><span>Click <span><img id="rds_09_0026__rds_08_0003_rds_modify_instance_name_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001191211679.png"></span> in the upper left corner and select a region and a project.</span></li><li id="rds_09_0026__rds_08_0003_li96167481711"><span>Click <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b171171523153019">Service List</strong>. Under <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b111722319302">Database</strong>, click <strong id="rds_09_0026__rds_08_0003_rds_modify_instance_name_b15118152363010">Relational Database Service</strong>. The RDS console is displayed.</span></li><li id="rds_09_0026__rds_08_0003_le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="rds_09_0026__rds_08_0003_b43610246918">Instances</strong> page, click the target primary DB instance or read replica.</span></li><li id="rds_09_0026__rds_08_0003_l2a5b3371b82b4bf0b87371149b3ffc1a"><span>On the <span class="uicontrol" id="rds_09_0026__rds_08_0003_uicontrol1755285511251"><b>Summary</b></span> page, click <strong id="rds_09_0026__rds_08_0003_b10728173016315">Configure</strong> under <strong id="rds_09_0026__rds_08_0003_b20669101892918">Security Group</strong>.</span></li><li id="rds_09_0026__rds_08_0003_li10553132183112"><span>In the displayed dialog box, select one from the drop-down list.</span></li><li id="rds_09_0026__rds_08_0003_li7265815143216"><span>Click <strong id="rds_09_0026__rds_08_0003_b02712410311">OK</strong> to submit the modification.</span></li><li id="rds_09_0026__rds_08_0003_lde4afc21cfca4e758513b927fd3eb6bb"><span>Changing the security group takes 1 to 3 minutes. Click <span><img id="rds_09_0026__rds_08_0003_image06841349468" src="en-us_image_0000001145051618.png"></span> in the upper right corner on the <span class="uicontrol" id="rds_09_0026__rds_08_0003_uicontrol567212562255"><b>Summary</b></span> page to view the results.</span></li></ol>
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