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VBS UMN 0729 Version

Browse Source 
Reviewed-by: Muller, Martin <martin.muller@t-systems.com>
Co-authored-by: weihongmin1 <weihongmin1@huawei.com>
Co-committed-by: weihongmin1 <weihongmin1@huawei.com>
This commit is contained in:
Wei, Hongmin
2025-07-31 13:14:08 +00:00
committed by zuul
parent c336743d9b
commit 30a6059c65
11 changed files with 33 additions and 24 deletions
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docs/vbs/umn/ALL_META.TXT.json
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@ -25,9 +25,9 @@
"node_id":"en-us_topic_0015667828.xml",
"product_code":"vbs",
"code":"2",
"des":"Volume Backup Service (VBS) provides snapshot-based data protection for Elastic Volume Service (EVS) disks.VBS secures your data, even if an EVS disk is faulty or encount",
"des":"This service is available only for users and projects where this service has already been used. If you are new to OTC Cloud, go to the console of the next-generation serv",
"doc_type":"usermanual",
"kw":"VBS,Service Overview,User Guide",
"kw":"What Is VBS?,Service Overview,User Guide",
"search_title":"",
"metedata":[
{
@ -35,7 +35,7 @@
"prodname":"vbs"
}
],
"title":"VBS",
"title":"What Is VBS?",
"githuburl":""
},
{
@ -639,7 +639,7 @@
"code":"36",
"des":"Yes. If an EVS disk you select to be associated with the target policy has been associated with another one, the system will disassociate it from the original policy and ",
"doc_type":"usermanual",
"kw":"Can a Disk Only Be Associated With One Policy?,FAQs,User Guide",
"kw":"Can a Disk Only Be Associated with One Policy?,FAQs,User Guide",
"search_title":"",
"metedata":[
{
@ -647,7 +647,7 @@
"prodname":"vbs"
}
],
"title":"Can a Disk Only Be Associated With One Policy?",
"title":"Can a Disk Only Be Associated with One Policy?",
"githuburl":""
},
{

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docs/vbs/umn/CLASS.TXT.json
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@ -9,9 +9,9 @@
"code":"1"
},
{
"desc":"Volume Backup Service (VBS) provides snapshot-based data protection for Elastic Volume Service (EVS) disks.VBS secures your data, even if an EVS disk is faulty or encount",
"desc":"This service is available only for users and projects where this service has already been used. If you are new to OTC Cloud, go to the console of the next-generation serv",
"product_code":"vbs",
"title":"VBS",
"title":"What Is VBS?",
"uri":"en-us_topic_0015667828.html",
"doc_type":"usermanual",
"p_code":"1",
@ -317,7 +317,7 @@
{
"desc":"Yes. If an EVS disk you select to be associated with the target policy has been associated with another one, the system will disassociate it from the original policy and ",
"product_code":"vbs",
"title":"Can a Disk Only Be Associated With One Policy?",
"title":"Can a Disk Only Be Associated with One Policy?",
"uri":"en-us_topic_0105943829.html",
"doc_type":"usermanual",
"p_code":"23",

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</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0105911995.html">Does Backup Can Be Performed Several Times a Day?</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0105943829.html">Can a Disk Only Be Associated With One Policy?</a></strong><br>
<li class="ulchildlink"><strong><a href="en-us_topic_0105943829.html">Can a Disk Only Be Associated with One Policy?</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0126537915.html">What Are Full Backup and Incremental Backup?</a></strong><br>
</li>

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</p></li><li id="EN-US_TOPIC_0015667820__li216924815116"><span>Click <strong id="EN-US_TOPIC_0015667820__b54298411164154">Create Now</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li816916481512"><span>Confirm the VBS backup information and click <strong id="EN-US_TOPIC_0015667820__b58288823164129">Submit</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li171692488511"><span>Switch back to the VBS backup list.</span><p><p id="EN-US_TOPIC_0015667820__p6169248135119">You can refresh the page after 10 seconds to view the backup creation status. When the <strong id="EN-US_TOPIC_0015667820__b12641261164129">Status</strong> of the backup changes to <strong id="EN-US_TOPIC_0015667820__b46662489164129">Available</strong>, the VBS backup has been successfully created.</p>
</p></li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0015667820__section304810668184"><h4 class="sectiontitle">Create a VBS Backup (Method 2)</h4><ol id="EN-US_TOPIC_0015667820__ol13630185417513"><li id="EN-US_TOPIC_0015667820__li1862975417512"><span>Log in to the management console.</span></li><li id="EN-US_TOPIC_0015667820__li393593165219"><span>Click <span><img id="EN-US_TOPIC_0015667820__image10988433202118" src="en-us_image_0123883658.png"></span>. Under <strong id="EN-US_TOPIC_0015667820__b109941333162112">Storage</strong>, click <strong id="EN-US_TOPIC_0015667820__b149941733192120">Elastic Volume Service</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li133026552817"><span>Click <span><img id="EN-US_TOPIC_0015667820__image123841347132019" src="en-us_image_0148548842.png"></span> in the upper left corner of the management console and select a region and a project.</span></li><li id="EN-US_TOPIC_0015667820__li1193563115211"><span>Locate the row that contains the target EVS disk. Click <strong id="EN-US_TOPIC_0015667820__b1631435636165537">More</strong> in the <strong id="EN-US_TOPIC_0015667820__b1510739264165537">Operation</strong> column and select <strong id="EN-US_TOPIC_0015667820__b963090602165537">Create Backup</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li592313223312"><span>From the EVS disk list on the left, click <span><img id="EN-US_TOPIC_0015667820__image20889164413610" src="en-us_image_0148405304.png"></span> to select the EVS disks you want to back up. Then they appear in the <strong id="EN-US_TOPIC_0015667820__b1235876382">Selected Disks</strong> list on the right. See <a href="#EN-US_TOPIC_0015667820__fig19341916182310">Figure 3</a>. You can click <span><img id="EN-US_TOPIC_0015667820__image1178814018150" src="en-us_image_0148405236.png"></span> in the <strong id="EN-US_TOPIC_0015667820__b117311418114513">Operation</strong> column to delete EVS disks that do not need to be backed up.</span><p><div class="fignone" id="EN-US_TOPIC_0015667820__fig19341916182310"><a name="EN-US_TOPIC_0015667820__fig19341916182310"></a><a name="fig19341916182310"></a><span class="figcap"><b>Figure 3 </b>Selecting a disk</span><br><span><img id="EN-US_TOPIC_0015667820__image2026182820393" src="en-us_image_0152878946.png"></span></div>
<div class="section" id="EN-US_TOPIC_0015667820__section304810668184"><h4 class="sectiontitle">Create a VBS Backup (Method 2)</h4><ol id="EN-US_TOPIC_0015667820__ol13630185417513"><li id="EN-US_TOPIC_0015667820__li1862975417512"><span>Log in to the management console.</span></li><li id="EN-US_TOPIC_0015667820__li393593165219"><span>Click <span><img id="EN-US_TOPIC_0015667820__image10988433202118" src="en-us_image_0123883658.png"></span>. Under <strong id="EN-US_TOPIC_0015667820__b109941333162112">Storage</strong>, click <strong id="EN-US_TOPIC_0015667820__b149941733192120">Elastic Volume Service</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li133026552817"><span>Click <span><img id="EN-US_TOPIC_0015667820__image123841347132019" src="en-us_image_0148548842.png"></span> in the upper left corner of the management console and select a region and a project.</span></li><li id="EN-US_TOPIC_0015667820__li1193563115211"><span>Locate the row that contains the target EVS disk. Click <strong id="EN-US_TOPIC_0015667820__b1631435636165537">More</strong> in the <strong id="EN-US_TOPIC_0015667820__b1510739264165537">Operation</strong> column and select <strong id="EN-US_TOPIC_0015667820__b963090602165537">Create Backup</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li592313223312"><span>From the EVS disk list on the left, click <span><img id="EN-US_TOPIC_0015667820__image20889164413610" src="en-us_image_0148405304.png"></span> to select the EVS disks you want to back up. Then they appear in the <strong id="EN-US_TOPIC_0015667820__b1582990448">Selected Disks</strong> list on the right. See <a href="#EN-US_TOPIC_0015667820__fig19341916182310">Figure 3</a>. You can click <span><img id="EN-US_TOPIC_0015667820__image1178814018150" src="en-us_image_0148405236.png"></span> in the <strong id="EN-US_TOPIC_0015667820__b117311418114513">Operation</strong> column to delete EVS disks that do not need to be backed up.</span><p><div class="fignone" id="EN-US_TOPIC_0015667820__fig19341916182310"><a name="EN-US_TOPIC_0015667820__fig19341916182310"></a><a name="fig19341916182310"></a><span class="figcap"><b>Figure 3 </b>Selecting a disk</span><br><span><img id="EN-US_TOPIC_0015667820__image2026182820393" src="en-us_image_0152878946.png"></span></div>
<div class="note" id="EN-US_TOPIC_0015667820__note354174518522"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0015667820__p175411445125212">The system will identify whether the selected EVS disk is encrypted. If it is encrypted, its backup data will be stored in encrypted mode.</p>
<p id="EN-US_TOPIC_0015667820__p1789815502316">In earlier versions, backup data of encrypted EVS disks is stored in non-encrypted mode. In the current version, newly generated backup data is stored in encrypted mode; however, historical non-encrypted backups will remain unchanged.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0015667820__li0704192483312"><span>Confirm that the EVS disks selected for backup are correct. Then in the <strong id="EN-US_TOPIC_0015667820__b1980065724">Configure Backup</strong> area below, set <strong id="EN-US_TOPIC_0015667820__b474119360">Auto Backup</strong> or <strong id="EN-US_TOPIC_0015667820__b788922373">Immediate Backup</strong> or both. See <a href="#EN-US_TOPIC_0015667820__fig22827152142">Figure 4</a>.</span><p><div class="fignone" id="EN-US_TOPIC_0015667820__fig22827152142"><a name="EN-US_TOPIC_0015667820__fig22827152142"></a><a name="fig22827152142"></a><span class="figcap"><b>Figure 4 </b>Configuring backup schemes</span><br><span><img id="EN-US_TOPIC_0015667820__image47091420104011" src="en-us_image_0152879164.png"></span></div>
<div class="p" id="EN-US_TOPIC_0015667820__p15812113193720"><div class="note" id="EN-US_TOPIC_0015667820__note621813129376"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0015667820__p1921819129372"><strong id="EN-US_TOPIC_0015667820__b157296555">Auto Backup</strong>: The selected EVS disks will be associated with the backup policy and will be automatically backed up according to the backup policy. If the selected EVS disks have been associated with another backup policy, they will be disassociated from that backup policy first and then associated with the new backup policy.</p>
</p></li><li id="EN-US_TOPIC_0015667820__li0704192483312"><span>Confirm that the EVS disks selected for backup are correct. Then in the <strong id="EN-US_TOPIC_0015667820__b655911264">Configure Backup</strong> area below, set <strong id="EN-US_TOPIC_0015667820__b45510644">Auto Backup</strong> or <strong id="EN-US_TOPIC_0015667820__b180775753">Immediate Backup</strong> or both. See <a href="#EN-US_TOPIC_0015667820__fig22827152142">Figure 4</a>.</span><p><div class="fignone" id="EN-US_TOPIC_0015667820__fig22827152142"><a name="EN-US_TOPIC_0015667820__fig22827152142"></a><a name="fig22827152142"></a><span class="figcap"><b>Figure 4 </b>Configuring backup schemes</span><br><span><img id="EN-US_TOPIC_0015667820__image47091420104011" src="en-us_image_0152879164.png"></span></div>
<div class="p" id="EN-US_TOPIC_0015667820__p15812113193720"><div class="note" id="EN-US_TOPIC_0015667820__note621813129376"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0015667820__p1921819129372"><strong id="EN-US_TOPIC_0015667820__b75460802">Auto Backup</strong>: The selected EVS disks will be associated with the backup policy and will be automatically backed up according to the backup policy. If the selected EVS disks have been associated with another backup policy, they will be disassociated from that backup policy first and then associated with the new backup policy.</p>
<p id="EN-US_TOPIC_0015667820__p162180127371"><strong id="EN-US_TOPIC_0015667820__b7498133911387">Immediate Backup</strong>: backs up the selected EVS disks at once.</p>
</div></div>
<ul id="EN-US_TOPIC_0015667820__ul463764419542"><li id="EN-US_TOPIC_0015667820__li2063714449541">Select <strong id="EN-US_TOPIC_0015667820__b1908908208">Auto Backup</strong>: In the <strong id="EN-US_TOPIC_0015667820__b978391793">Backup Policy</strong> drop-down list, select an existing one. You can also click <strong id="EN-US_TOPIC_0015667820__b1267724829">Create Policy</strong> to create a new one. For details, see <a href="en-us_topic_0033745918.html">Data Backup Using a Backup Policy</a>.</li><li id="EN-US_TOPIC_0015667820__li20637204416546">Select <strong id="EN-US_TOPIC_0015667820__b79813588384">Immediate Backup</strong>: Enter the backup name and description. <a href="#EN-US_TOPIC_0015667820__table11869527309">Table 1</a> describes the parameters.</li></ul>
<ul id="EN-US_TOPIC_0015667820__ul463764419542"><li id="EN-US_TOPIC_0015667820__li2063714449541">Select <strong id="EN-US_TOPIC_0015667820__b1568043778">Auto Backup</strong>: In the <strong id="EN-US_TOPIC_0015667820__b873827912">Backup Policy</strong> drop-down list, select an existing one. You can also click <strong id="EN-US_TOPIC_0015667820__b280688264">Create Policy</strong> to create a new one. For details, see <a href="en-us_topic_0033745918.html">Data Backup Using a Backup Policy</a>.</li><li id="EN-US_TOPIC_0015667820__li20637204416546">Select <strong id="EN-US_TOPIC_0015667820__b79813588384">Immediate Backup</strong>: Enter the backup name and description. <a href="#EN-US_TOPIC_0015667820__table11869527309">Table 1</a> describes the parameters.</li></ul>
</div>
</p></li><li id="EN-US_TOPIC_0015667820__li9682134511181"><span>Determine whether to select <strong id="EN-US_TOPIC_0015667820__b2534105111013">Enable</strong> next to <span class="parmname" id="EN-US_TOPIC_0015667820__parmname1953635110011"><b>Full Backup</b></span>. If <strong id="EN-US_TOPIC_0015667820__b84235270619637">Full Backup</strong> is enabled, the generated full backup and later generated incremental backups will support instant restoration. When you use Instant Restore for the first time through APIs and the to-be-restored disk has been backed up before the feature is enabled, enable full backup. After doing this, the disk backups generated through APIs will support instant restoration.</span></li><li id="EN-US_TOPIC_0015667820__li10682141042513"><span>Add tags to the VBS backup. <a href="#EN-US_TOPIC_0015667820__table191162312815">Table 2</a> describes the parameters.</span><p><p id="EN-US_TOPIC_0015667820__p7190131118389">A tag is represented in the form of a key-value pair. Tags are used to identify, classify, and search for cloud resources. Tags are used to filter and manage backup resources only. A backup can have a maximum of 10 tags.</p>
</p></li><li id="EN-US_TOPIC_0015667820__li16935131525"><span>Click <strong id="EN-US_TOPIC_0015667820__b683348889">Create Now</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li139351332523"><span>Confirm the VBS backup information and click <strong id="EN-US_TOPIC_0015667820__b629227723">Submit</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li19935193195211"><span>Switch back to the VBS backup list.</span><p><p id="EN-US_TOPIC_0015667820__p109351310521">You can refresh the page after 10 seconds to view the backup creation status. When the <strong id="EN-US_TOPIC_0015667820__b21863054">Status</strong> of the backup changes to <strong id="EN-US_TOPIC_0015667820__b413778466">Available</strong>, the VBS backup has been successfully created.</p>
</p></li><li id="EN-US_TOPIC_0015667820__li16935131525"><span>Click <strong id="EN-US_TOPIC_0015667820__b430543559">Create Now</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li139351332523"><span>Confirm the VBS backup information and click <strong id="EN-US_TOPIC_0015667820__b324973914">Submit</strong>.</span></li><li id="EN-US_TOPIC_0015667820__li19935193195211"><span>Switch back to the VBS backup list.</span><p><p id="EN-US_TOPIC_0015667820__p109351310521">You can refresh the page after 10 seconds to view the backup creation status. When the <strong id="EN-US_TOPIC_0015667820__b1574015824">Status</strong> of the backup changes to <strong id="EN-US_TOPIC_0015667820__b26990621">Available</strong>, the VBS backup has been successfully created.</p>
</p></li></ol>
</div>
</div>

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<a name="EN-US_TOPIC_0015667828"></a><a name="EN-US_TOPIC_0015667828"></a>
<h1 class="topictitle1">VBS</h1>
<div id="body55752527"><p id="EN-US_TOPIC_0015667828__p41082090155616">Volume Backup Service (VBS) provides snapshot-based data protection for Elastic Volume Service (EVS) disks.</p>
<h1 class="topictitle1">What Is VBS?</h1>
<div id="body55752527"><p id="EN-US_TOPIC_0015667828__p174220192213">This service is available only for users and projects where this service has already been used. If you are new to OTC Cloud, go to the console of the next-generation service, Cloud Backup and Recovery (CBR), which integrates Volume Backup Service (VBS).</p>
<p id="EN-US_TOPIC_0015667828__p41082090155616">Volume Backup Service (VBS) provides snapshot-based data protection for Elastic Volume Service (EVS) disks.</p>
<p id="EN-US_TOPIC_0015667828__p5925764018129">VBS secures your data, even if an EVS disk is faulty or encounters a logical error (for example, mis-deletion, hacker attacks, and virus infection). It allows you to effortlessly back up your data, and these data backups can be used to restore data quickly.</p>
<p id="EN-US_TOPIC_0015667828__p243145181428">VBS supports both full and incremental backup modes. By default, the system performs a full backup initially, and then performs incremental backups. You can use a data backup generated in either backup mode to restore the source EVS disk to the state the EVS disk was in when the backup was created.</p>
<p id="EN-US_TOPIC_0015667828__p10802832134819">VBS allows one-click backup and restoration for the EVS disks on servers all through its easy-to-use platform. These servers are Elastic Cloud Servers (ECSs).</p>

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<div id="body15047603"></div>
<div>
<ul class="ullinks">
<li class="ulchildlink"><strong><a href="en-us_topic_0015667828.html">VBS</a></strong><br>
<li class="ulchildlink"><strong><a href="en-us_topic_0015667828.html">What Is VBS?</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0031627299.html">VBS Functions</a></strong><br>
</li>

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</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0041062628__row1874217316161"><td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041062628__p1957399191611">2024-10-11</p>
<tbody><tr id="EN-US_TOPIC_0041062628__row325124432120"><td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041062628__p825154418219">2025-07-28</p>
</td>
<td class="cellrowborder" valign="top" width="82%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041062628__p1857317971616">Optimized some descriptions.</p>
<td class="cellrowborder" valign="top" width="82%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041062628__p1125144411211">Updated the following content:</p>
<p id="EN-US_TOPIC_0041062628__p46963720226">Added a discontinuation description in section "Service Overview" of Volume Backup Service.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0041062628__row1874217316161"><td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041062628__p1957399191611">2024-10-11</p>
</td>
<td class="cellrowborder" valign="top" width="82%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041062628__p1244210442211">Updated the following content:</p>
<p id="EN-US_TOPIC_0041062628__p1857317971616">Optimized some descriptions.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0041062628__row12161122604913"><td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041062628__p4161426154915">2023-10-23</p>
</td>
<td class="cellrowborder" valign="top" width="82%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041062628__p16161132664914">Optimized some procedures and descriptions.</p>
<td class="cellrowborder" valign="top" width="82%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041062628__p20879515226">Updated the following content:</p>
<p id="EN-US_TOPIC_0041062628__p16161132664914">Optimized some procedures and descriptions.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0041062628__row228912317106"><td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041062628__p32901831171013">2021-12-20</p>

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<a name="EN-US_TOPIC_0105943829"></a><a name="EN-US_TOPIC_0105943829"></a>
<h1 class="topictitle1">Can a Disk Only Be Associated With One Policy?</h1>
<h1 class="topictitle1">Can a Disk Only Be Associated with One Policy?</h1>
<div id="body1523411959620"><p id="EN-US_TOPIC_0105943829__p8060118">Yes. If an EVS disk you select to be associated with the target policy has been associated with another one, the system will disassociate it from the original policy and then associate it with the target one.</p>
</div>
<div>

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</div>
</li><li id="EN-US_TOPIC_0112805384__li15716836182917">Ensure that the backup policy is enabled. When the point in time specified by the backup policy arrives, select the backup policy. Then on the <strong id="EN-US_TOPIC_0112805384__b37460474517">Backup Jobs</strong> panel, ensure that a backup job is generated.</li><li id="EN-US_TOPIC_0112805384__li391664841316">On the VBS backup list, locate the needed backup according to <strong id="EN-US_TOPIC_0112805384__b211894792616">Name</strong> (the <strong id="EN-US_TOPIC_0112805384__b1675213084617">Backup Name</strong> specified in the backup job). When the <strong id="EN-US_TOPIC_0112805384__b8423527061202">Status</strong> is <strong id="EN-US_TOPIC_0112805384__b84235270612014">Available</strong>, the backup job of the associated EVS disks is complete.</li></ol>
</li><li id="EN-US_TOPIC_0112805384__li12555132712311">Disassociating EVS disks<ol type="a" id="EN-US_TOPIC_0112805384__ol185556271234"><li id="EN-US_TOPIC_0112805384__li4555827034">In the list of associated EVS disks, locate the EVS disk to be disassociated from the backup policy and click <strong id="EN-US_TOPIC_0112805384__b176141291419">Disassociate</strong> in the <strong id="EN-US_TOPIC_0112805384__b661482914412">Operation</strong> column.<p id="EN-US_TOPIC_0112805384__p35551627035">The <strong id="EN-US_TOPIC_0112805384__b6614202917415">Disassociate Disk</strong> dialog box is displayed. </p>
</li><li id="EN-US_TOPIC_0112805384__li35552275314">Optional: In the list of associated EVS disks, select one or more EVS disks to be disassociated from the backup policy and click <strong id="EN-US_TOPIC_0112805384__b761411291544">Disassociate</strong> above the list.<p id="EN-US_TOPIC_0112805384__p1955592717312">The <strong id="EN-US_TOPIC_0112805384__b1865935761">Disassociate Disk</strong> dialog box is displayed.</p>
</li><li id="EN-US_TOPIC_0112805384__li35552275314">Optional: In the list of associated EVS disks, select one or more EVS disks to be disassociated from the backup policy and click <strong id="EN-US_TOPIC_0112805384__b761411291544">Disassociate</strong> above the list.<p id="EN-US_TOPIC_0112805384__p1955592717312">The <strong id="EN-US_TOPIC_0112805384__b196144962">Disassociate Disk</strong> dialog box is displayed.</p>
</li><li id="EN-US_TOPIC_0112805384__li135552279316">Confirm the EVS disk information and click <strong id="EN-US_TOPIC_0112805384__b161422910415">OK</strong>.<p id="EN-US_TOPIC_0112805384__p1119893875516">The <strong id="EN-US_TOPIC_0112805384__b991812421421">Associated Disks</strong> panel does not display the EVS disks that are disassociated from this backup policy.</p>
</li></ol>
</li></ul>

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<h1 class="topictitle1">Searching for Associated EVS Disks</h1>
<div id="body1526541752379"><p id="EN-US_TOPIC_0112805385__p67248134111">To query an EVS disk from a backup policy with a large number of EVS disks associated, you can set filtering criteria to search it.</p>
<div class="section" id="EN-US_TOPIC_0112805385__section1433412621118"><h4 class="sectiontitle"><strong id="EN-US_TOPIC_0112805385__b84235270692429">Procedure</strong></h4><ol id="EN-US_TOPIC_0112805385__ol4397183841813"><li id="EN-US_TOPIC_0112805385__li8398133841813"><span>Log in to the management console.</span></li><li id="EN-US_TOPIC_0112805385__li36718461479"><span>Click <span><img id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_image1213335617234" src="en-us_image_0148548673.png"></span> in the upper left corner of the management console and select a region and a project.</span></li><li id="EN-US_TOPIC_0112805385__li14398138131815"><span>Click <span><img id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_image182991727162117" src="en-us_image_0128947790.png"></span>. Under <strong id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_b830214274216">Storage</strong>, click <strong id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_b630292772119">Volume Backup Service</strong>.</span></li><li id="EN-US_TOPIC_0112805385__li1539814381188"><span>On the <span class="wintitle" id="EN-US_TOPIC_0112805385__wintitle1848919176113"><b>Volume Backup Service</b></span> page, click <span class="uicontrol" id="EN-US_TOPIC_0112805385__uicontrol2489617811"><b>Policies</b></span> to go to the <strong id="EN-US_TOPIC_0112805385__b1449111718114">Policies</strong> tab page.</span></li><li id="EN-US_TOPIC_0112805385__li19398113861814"><span>Click <span><img id="EN-US_TOPIC_0112805385__image5500325144317" src="en-us_image_0148563132.png"></span> in the row of the desired policy. The list of associated EVS disks is displayed in the <strong id="EN-US_TOPIC_0112805385__b33697048717915">Associated Disks</strong> panel.</span></li><li id="EN-US_TOPIC_0112805385__li8398113811815"><span>In the upper right corner of the list, select a state to search for EVS disks in the state.</span></li><li id="EN-US_TOPIC_0112805385__li6398143810187"><span>(Optional) Specify whether to search for an EVS disk by its name or ID and enter the corresponding value, and click <span><img id="EN-US_TOPIC_0112805385__image119301540194415" src="en-us_image_0148561644.png"></span> to search. See<a href="#EN-US_TOPIC_0112805385__fig1239823815186">Figure 1</a>.</span><p><div class="fignone" id="EN-US_TOPIC_0112805385__fig1239823815186"><a name="EN-US_TOPIC_0112805385__fig1239823815186"></a><a name="fig1239823815186"></a><span class="figcap"><b>Figure 1 </b>Searching for associated EVS disks</span></div>
<div class="section" id="EN-US_TOPIC_0112805385__section1433412621118"><h4 class="sectiontitle"><strong id="EN-US_TOPIC_0112805385__b84235270692429">Procedure</strong></h4><ol id="EN-US_TOPIC_0112805385__ol4397183841813"><li id="EN-US_TOPIC_0112805385__li8398133841813"><span>Log in to the management console.</span></li><li id="EN-US_TOPIC_0112805385__li36718461479"><span>Click <span><img id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_image1213335617234" src="en-us_image_0148548673.png"></span> in the upper left corner of the management console and select a region and a project.</span></li><li id="EN-US_TOPIC_0112805385__li14398138131815"><span>Click <span><img id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_image182991727162117" src="en-us_image_0128947790.png"></span>. Under <strong id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_b830214274216">Storage</strong>, click <strong id="EN-US_TOPIC_0112805385__en-us_topic_0015667820_b630292772119">Volume Backup Service</strong>.</span></li><li id="EN-US_TOPIC_0112805385__li1539814381188"><span>On the <span class="wintitle" id="EN-US_TOPIC_0112805385__wintitle1848919176113"><b>Volume Backup Service</b></span> page, click <span class="uicontrol" id="EN-US_TOPIC_0112805385__uicontrol2489617811"><b>Policies</b></span> to go to the <strong id="EN-US_TOPIC_0112805385__b1449111718114">Policies</strong> tab page.</span></li><li id="EN-US_TOPIC_0112805385__li19398113861814"><span>Click <span><img id="EN-US_TOPIC_0112805385__image5500325144317" src="en-us_image_0148563132.png"></span> in the row of the desired policy. The list of associated EVS disks is displayed in the <strong id="EN-US_TOPIC_0112805385__b33697048717915">Associated Disks</strong> panel.</span></li><li id="EN-US_TOPIC_0112805385__li8398113811815"><span>In the upper right corner of the list, select a state to search for EVS disks in the state.</span></li><li id="EN-US_TOPIC_0112805385__li6398143810187"><span>(Optional) Specify whether to search for an EVS disk by its name or ID and enter the corresponding value, and click <span><img id="EN-US_TOPIC_0112805385__image119301540194415" src="en-us_image_0148561644.png"></span> to search. See <a href="#EN-US_TOPIC_0112805385__fig1239823815186">Figure 1</a>.</span><p><div class="fignone" id="EN-US_TOPIC_0112805385__fig1239823815186"><a name="EN-US_TOPIC_0112805385__fig1239823815186"></a><a name="fig1239823815186"></a><span class="figcap"><b>Figure 1 </b>Searching for associated EVS disks</span></div>
<p id="EN-US_TOPIC_0112805385__p1060702010213"><span><img id="EN-US_TOPIC_0112805385__image1429834182111" src="en-us_image_0142058549.png"></span></p>
</p></li></ol>
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<p id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_p1479174514614"><a href="#EN-US_TOPIC_0170379340__en-us_topic_0184026189_fig8747114281212">Figure 1</a> shows the relationship between regions and AZs.</p>
<div class="fignone" id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_fig8747114281212"><a name="EN-US_TOPIC_0170379340__en-us_topic_0184026189_fig8747114281212"></a><a name="en-us_topic_0184026189_fig8747114281212"></a><span class="figcap"><b>Figure 1 </b>Regions and AZs</span><br><span><img class="vsd" id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_image12748194211128" src="en-us_image_0184026531.png"></span></div>
</div>
<div class="section" id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_section67281149192216"><h4 class="sectiontitle">Selecting a Region</h4><p id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_p68521454132212">Select a region closest to your target users for lower network latency and quick access.</p>
<div class="section" id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_section67281149192216"><h4 class="sectiontitle">Selecting a Region</h4><p id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_p68521454132212">You are advised to select a region close to you or your target users. This helps ensure low access latency.</p>
</div>
<div class="section" id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_section193971112578"><h4 class="sectiontitle">Selecting an AZ</h4><p id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_p859161416717">When deploying resources, consider your applications' requirements on disaster recovery (DR) and network latency.</p>
<ul id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_ul157203571473"><li id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_li7720175710711">For high DR capability, deploy resources in different AZs within the same region.</li><li id="EN-US_TOPIC_0170379340__en-us_topic_0184026189_li109763595719">For lower network latency, deploy resources in the same AZ.</li></ul>