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ECS UMN 20260417 version. Added secure boot content.

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Reviewed-by: Pristromskaia, Margarita <margarita.pristromskaia@t-systems.com>
Co-authored-by: wanghuijuan738 <wanghuijuan738@huawei.com>
Co-committed-by: wanghuijuan738 <wanghuijuan738@huawei.com>
This commit is contained in:
Huijuan, Wang
2026-05-11 15:42:48 +00:00
committed by zuul
parent b31d0d5dd6
commit 4304fed907
44 changed files with 1583 additions and 1136 deletions
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<h1 class="topictitle1">(Recommended) Creating a Key Pair on the Management Console</h1>
<div id="body0000001278350057"><div class="section" id="EN-US_TOPIC_0000001278350057__section4859995204421"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0000001278350057__p45751306523">You can create a key pair on the management console. After the key pair is created, the public key is automatically stored in the system, and the private key is stored in your local computer. After a key pair is created for an ECS on the management console, ensure that you store your private key in a secure place. Without a private key, you will not be able to log in to the ECS.</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001278350057__section35336147204538"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001278350057__ol1373281010048"><li id="EN-US_TOPIC_0000001278350057__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0000001278350057__li0975135720214">Click <span><img id="EN-US_TOPIC_0000001278350057__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0000001278350057__li3861581410048">Under <strong id="EN-US_TOPIC_0000001278350057__b4705172524514"><span id="EN-US_TOPIC_0000001278350057__text16705192504519">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001278350057__b16705625124514">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li1199800610048">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0000001278350057__b162483549591">Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li4087319010048">On the displayed page, click <strong id="EN-US_TOPIC_0000001278350057__b1840322415452">Create Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li55901884715">Enter a key pair name.<p id="EN-US_TOPIC_0000001278350057__p926788112916"><a name="EN-US_TOPIC_0000001278350057__li55901884715"></a><a name="li55901884715"></a>A key pair name consists of two parts: KeyPair and four random digits (KeyPair-xxxx).</p>
<div class="section" id="EN-US_TOPIC_0000001278350057__section35336147204538"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001278350057__ol1373281010048"><li id="EN-US_TOPIC_0000001278350057__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0000001278350057__li0975135720214">Click <span><img id="EN-US_TOPIC_0000001278350057__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0000001278350057__li3861581410048">Under <strong id="EN-US_TOPIC_0000001278350057__b964975402718"><span id="EN-US_TOPIC_0000001278350057__text564945414272">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001278350057__b1864912542277">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li1199800610048">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0000001278350057__b162483549591">Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li4087319010048">On the displayed page, click <strong id="EN-US_TOPIC_0000001278350057__b1840322415452">Create Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li55901884715">Enter a key pair name.<p id="EN-US_TOPIC_0000001278350057__p926788112916"><a name="EN-US_TOPIC_0000001278350057__li55901884715"></a><a name="li55901884715"></a>A key pair name consists of two parts: KeyPair and four random digits (KeyPair-xxxx).</p>
</li><li id="EN-US_TOPIC_0000001278350057__li21039497612">Click <strong id="EN-US_TOPIC_0000001278350057__b19193410164516">OK</strong>.</li><li id="EN-US_TOPIC_0000001278350057__li22000910048">Manually or automatically download a .pem private key file with the name that you specify as the key name. Store it in a secure place and click <strong id="EN-US_TOPIC_0000001278350057__b9321655175319">OK</strong>.<div class="note" id="EN-US_TOPIC_0000001278350057__note118145116483"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001278350057__p158141810481">This is the only chance for you to save the private key file. Keep it secure. You'll need to provide the key pair name when you create an ECS, and the corresponding private key each time you connect to the ECS through SSH.</p>
</div></div>
</li></ol>

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</div></div>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000001278734873__section62005706143441"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001278734873__ol49887931143442"><li id="EN-US_TOPIC_0000001278734873__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0000001278734873__li464234814566">Click <span><img id="EN-US_TOPIC_0000001278734873__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0000001278734873__li44979101143442">Under <strong id="EN-US_TOPIC_0000001278734873__b1481314710411"><span id="EN-US_TOPIC_0000001278734873__text1481211479417">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001278734873__b10813144718412">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0000001278734873__li2158728143442">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0000001278734873__b46541856518">Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278734873__li32291957143442">On the <strong id="EN-US_TOPIC_0000001278734873__b1535364720341">Key Pair Service</strong> page, click <strong id="EN-US_TOPIC_0000001278734873__b196332291428">Import Key Pair</strong>.<div class="fignone" id="EN-US_TOPIC_0000001278734873__fig30209536143442"><span class="figcap"><b>Figure 1 </b>Import Public Key</span><br><span><img id="EN-US_TOPIC_0000001278734873__image20721905189" src="en-us_image_0000002351719638.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="EN-US_TOPIC_0000001278734873__section62005706143441"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001278734873__ol49887931143442"><li id="EN-US_TOPIC_0000001278734873__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0000001278734873__li464234814566">Click <span><img id="EN-US_TOPIC_0000001278734873__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0000001278734873__li44979101143442">Under <strong id="EN-US_TOPIC_0000001278734873__b18521442811"><span id="EN-US_TOPIC_0000001278734873__text652014142816">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001278734873__b1551414202812">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0000001278734873__li2158728143442">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0000001278734873__b46541856518">Key Pair</strong>.</li><li id="EN-US_TOPIC_0000001278734873__li32291957143442">On the <strong id="EN-US_TOPIC_0000001278734873__b1535364720341">Key Pair Service</strong> page, click <strong id="EN-US_TOPIC_0000001278734873__b196332291428">Import Key Pair</strong>.<div class="fignone" id="EN-US_TOPIC_0000001278734873__fig30209536143442"><span class="figcap"><b>Figure 1 </b>Import Public Key</span><br><span><img id="EN-US_TOPIC_0000001278734873__image20721905189" src="en-us_image_0000002351719638.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0000001278734873__li37898602143442">Use either of the following methods to import the key pair:<ul id="EN-US_TOPIC_0000001278734873__ul4210955143442"><li id="EN-US_TOPIC_0000001278734873__li57034482143442">Selecting a file<ol type="a" id="EN-US_TOPIC_0000001278734873__ol1214990115226"><li id="EN-US_TOPIC_0000001278734873__li2371687115226">In the <strong id="EN-US_TOPIC_0000001278734873__b842352706112651">Import Key Pair</strong> dialog box of the management console, click <strong id="EN-US_TOPIC_0000001278734873__b842352706112725">Select File</strong> and select the locally stored public key file (for example, the .txt file saved in <a href="en-us_topic_0000001234335274.html#EN-US_TOPIC_0000001234335274__li18403111116343">3</a> in <a href="en-us_topic_0000001234335274.html">Creating a Key Pair Using PuTTY Key Generator</a>).<div class="note" id="EN-US_TOPIC_0000001278734873__note2825014412158"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001278734873__p5292471112158">Make sure that the file to be imported is a public key file.</p>
</div></div>
</li><li id="EN-US_TOPIC_0000001278734873__li36968064152326">Click <strong id="EN-US_TOPIC_0000001278734873__b3851022171115">OK</strong>.<p id="EN-US_TOPIC_0000001278734873__p53154419152328">After the public key is imported, you can change its name.</p>

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<ul class="ullinks">
<li class="ulchildlink"><strong><a href="en-us_topic_0030828254.html">Image Types</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0048642616.html">Cloud-Init</a></strong><br>
<li class="ulchildlink"><strong><a href="en-us_topic_0048642616.html">Cloud-Init/Cloudbase-Init</a></strong><br>
</li>
</ul>

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</table>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001630328828__section16095210249"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001630328828__ol12609425242"><li id="EN-US_TOPIC_0000001630328828__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0000001630328828__li1859019014179">Under <strong id="EN-US_TOPIC_0000001630328828__b243210264517"><span id="EN-US_TOPIC_0000001630328828__text154321126553">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001630328828__b743219261251">Elastic Cloud Server</strong>.<p id="EN-US_TOPIC_0000001630328828__p28383428216">The ECS console is displayed.</p>
<div class="section" id="EN-US_TOPIC_0000001630328828__section16095210249"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001630328828__ol12609425242"><li id="EN-US_TOPIC_0000001630328828__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0000001630328828__li1859019014179">Under <strong id="EN-US_TOPIC_0000001630328828__b730311816275"><span id="EN-US_TOPIC_0000001630328828__text10303161817276">Computing</span></strong>, click <strong id="EN-US_TOPIC_0000001630328828__b133031618182710">Elastic Cloud Server</strong>.<p id="EN-US_TOPIC_0000001630328828__p28383428216">The ECS console is displayed.</p>
</li><li id="EN-US_TOPIC_0000001630328828__li5741957114179">In the search box, specify search criteria.<p id="EN-US_TOPIC_0000001630328828__p565319017372"><a name="EN-US_TOPIC_0000001630328828__li5741957114179"></a><a name="li5741957114179"></a>You can use either of the following methods:</p>
<ul id="EN-US_TOPIC_0000001630328828__ul13187161122215"><li id="EN-US_TOPIC_0000001630328828__li6711724163618">Directly enter a property value for search.</li><li id="EN-US_TOPIC_0000001630328828__li491671419227">Select a property first and specify the property value for search.<ol type="a" id="EN-US_TOPIC_0000001630328828__ol1835010141318"><li id="EN-US_TOPIC_0000001630328828__li191652820348">Click the search box and select a property.<div class="fignone" id="EN-US_TOPIC_0000001630328828__fig36751424101219"><span class="figcap"><b>Figure 1 </b>Selecting a property</span><br><span><img id="EN-US_TOPIC_0000001630328828__image14454151715122" src="en-us_image_0000001787680536.png"></span></div>
</li><li id="EN-US_TOPIC_0000001630328828__li1177917437254">In the search box, enter or select properties as prompted, such as ID, status, and flavor name, and press <strong id="EN-US_TOPIC_0000001630328828__b16021023483">Enter</strong>.</li></ol>

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<div id="body8662426"><div class="section" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_section31580524185332"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p4699546795037">This section uses CentOS 7.4 64bit to describe how to initialize a data disk attached to a <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_text64983956174258">server</span> running Linux and use parted to partition the data disk.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p1082441621516">The maximum partition size that MBR supports is 2 TiB and that GPT supports is 18 EiB. If the disk size you need to partition is greater than 2 TiB, partition the disk using GPT.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p15721831171512">The fdisk partitioning tool is suitable only for MBR partitions, and the parted partitioning tool is suitable for both MBR and GPT partitions. For more information, see <a href="en-us_topic_0030831623.html">Scenarios and Disk Partitions</a>.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808330348_p52314842171548">The method for initializing a disk varies slightly depending on the OS running on the server. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189108_en-us_topic_0000001808330348_p52314842171548">The method for initializing a disk varies slightly depending on the OS running on the <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_en-us_topic_0000001855867909_text1616210117381">server</span>. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.</p>
<div class="notice" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_note13926451175010"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524740_p205672613317">When using a disk for the first time, if you have not initialized it, including creating partitions and file systems, the additional space added to this disk in an expansion later may not be normally used.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_section36737034185332"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808330348_text1464237810424">server</span> and has not been initialized.</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_ul6229092211568"><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_i934643317327">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809189104_i1036013617325">Bare Metal Server User Guide</em>.</li></ul>
<div class="section" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_section36737034185332"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808330348_text1464237810424">server</span> and has not been initialized.</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001855947925_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_ul387541411169"><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_i1787187204412">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000002051334113_i11197136164415">Bare Metal Server User Guide</em>.</li></ul>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_section36039836195351"><h4 class="sectiontitle">Creating and Mounting a Partition</h4><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p4530289419544">The following example shows you how a new partition can be created on a new data disk that has been attached to a <span id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_text2422957163556">server</span>. The partition will be created using parted, and GPT will be used. Furthermore, the partition will be formatted using the ext4 file system, mounted on <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b109171540101711">/mnt/sdc</strong>, and configured to mount automatically at startup.</p>
@ -120,12 +120,12 @@ Writing superblocks and filesystem accounting information: done</pre>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p1758015813211">The formatting takes a period of time. Observe the system running status and do not exit.</p>
<div class="notice" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_note29186911243"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p262682811243">The partition sizes supported by file systems vary. Choose an appropriate file system format based on your service requirements.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_li1910362714149"><span>Create a mount point.</span><p><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p1910382791412"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b1856120194514">mkdir</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_i956219198512">&lt;mount-point&gt;</em></p>
</p></li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_li1910362714149"><span>Create a mount point.</span><p><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p1910382791412"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b1856120194514">mkdir</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_i956219198512">mount-point</em></p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p810320277141">In this example, the <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b3203220165719">/mnt/sdc</strong> mount point is created.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p171039270143"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b1110352719144">mkdir /mnt/sdc</strong></p>
<div class="note" id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_note1653352162717"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_p153319214278">The <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b1034415487519">/mnt</strong> directory exists on all Linux systems. If the mount point cannot be created, it may be that the <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b4345184865117">/mnt</strong> directory has been accidentally deleted. You can run <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b1534594816513">mkdir -p /mnt/sdc</strong> to create the mount point.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_li17103172711414"><span>Mount the new partition on the created mount point.</span><p><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p31039277141"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b16411837205110">mount</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_i8642173720513">&lt;disk-partition&gt;</em> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_i56430370511">&lt;mount-point&gt;</em></p>
</p></li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_li17103172711414"><span>Mount the new partition on the created mount point.</span><p><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p31039277141"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_b221713412503">mount</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_i02171410501">disk-partition</em> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_i621716435016">mount-point</em></p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p171037271142">In this example, the <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b2730538175710">/dev/vdb1</strong> partition is mounted on <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b773063810574">/mnt/sdc</strong>.</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p51031027171414"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b5103122710147">mount /dev/vdb1 /mnt/sdc</strong></p>
</p></li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_li47695742151459"><span>Check the mount result.</span><p><p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_p26608495151459"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_b38149863151459">df -TH</strong></p>
@ -161,7 +161,7 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p621161413262">In this example, run the following command:</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p1521115148260"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_b0213614192618">umount /dev/vdb1</strong></p>
</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li2397162792610">Reload all the content in the <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b421351925420">/etc/fstab</strong> file.<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p1739714278269"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_b63981278267">mount -a</strong></p>
</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269">Query the file system mounting information.<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p3282133715264"><a name="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269"></a><a name="en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269"></a><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b124661626175417">mount</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b1146652655417">|</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b846782615548">grep</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_i9467726105412">&lt;mount-point&gt;</em></p>
</li><li id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269">Query the file system mounting information.<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p3282133715264"><a name="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269"></a><a name="en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_li9280203710269"></a><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b124661626175417">mount</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b1146652655417">|</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_b846782615548">grep</strong> <em id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_i9467726105412">mount-point</em></p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p3286437112619">In this example, run the following command:</p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p18286123782619"><strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_b925094342911">mount</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_b1725119437291">|</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_b15324154395212">grep</strong> <strong id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_b1831387417">/mnt/sdc</strong></p>
<p id="EN-US_TOPIC_0000002488064958__en-us_topic_0000002015294546_en-us_topic_0000001809029272_en-us_topic_0000001808490156_en-us_topic_0044524669_en-us_topic_0142861223_p429163752616">If information similar to the following is displayed, auto mount has taken effect:</p>

14
docs/ecs/umn/en-us_topic_0000002520144801.html
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@ -4,11 +4,11 @@
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_section31580524185332"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p3566739210424">This section uses CentOS 7.4 64bit to describe how to initialize a data disk attached to a <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_text1464237810424">server</span> running Linux and use fdisk to partition the data disk.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p54551132112014">The maximum partition size that MBR supports is 2 TiB and that GPT supports is 18 EiB. If the disk size you need to partition is greater than 2 TiB, partition the disk using GPT.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p12685942161314">The fdisk partitioning tool is suitable only for MBR partitions, and the parted partitioning tool is suitable for both MBR and GPT partitions. For more information, see <a href="en-us_topic_0030831623.html">Scenarios and Disk Partitions</a>.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330348_p52314842171548">The method for initializing a disk varies slightly depending on the OS running on the server. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330348_p52314842171548">The method for initializing a disk varies slightly depending on the OS running on the <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_en-us_topic_0000001855867909_text1616210117381">server</span>. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.</p>
<div class="notice" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_note13926451175010"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0044524740_p205672613317">When using a disk for the first time, if you have not initialized it, including creating partitions and file systems, the additional space added to this disk in an expansion later may not be normally used.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_section117091356845"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330348_text1464237810424">server</span> and has not been initialized.</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_ul6229092211568"><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_i934643317327">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189104_i1036013617325">Bare Metal Server User Guide</em>.</li></ul>
<div class="section" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_section117091356845"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330348_text1464237810424">server</span> and has not been initialized.</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001855947925_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_ul387541411169"><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_i1787187204412">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000002051334113_i11197136164415">Bare Metal Server User Guide</em>.</li></ul>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_section36039836195351"><h4 class="sectiontitle">Creating and Mounting a Partition</h4><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p4530289419544">The following example shows you how a new primary partition can be created on a new data disk that has been attached to a <span id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_text2422957163556">server</span>. The primary partition will be created using fdisk, and MBR will be used. Furthermore, the partition will be formatted using the ext4 file system, mounted on <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b84235270611226">/mnt/sdc</strong>, and configured to mount automatically at startup.</p>
@ -69,8 +69,8 @@ First sector (2048-209715199, default 2048):</pre>
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):</pre>
</div>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p4034033118642"><span class="parmname" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_parmname1166155218"><b>Last sector</b></span> indicates the end sector. The value ranges from <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b1525308575">2048</strong> to <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1798151514556">209715199</strong>, and the default value is <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b1926524443">209715199</strong>.</p>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li657968113217"><span>Select the default end sector <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b842352706112515">209715199</strong> and press <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b557130134">Enter</strong>.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1675124661216">The system displays the start and end sectors of the partition's available space. You can customize the value within this range or use the default value. The start sector must be smaller than the partition's end sector.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p4034033118642"><span class="parmname" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_parmname1608303176"><b>Last sector</b></span> indicates the end sector. The value ranges from <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b1522299810">2048</strong> to <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1798151514556">209715199</strong>, and the default value is <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b75268318">209715199</strong>.</p>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li657968113217"><span>Select the default end sector <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b842352706112515">209715199</strong> and press <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_b368918244">Enter</strong>.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1675124661216">The system displays the start and end sectors of the partition's available space. You can customize the value within this range or use the default value. The start sector must be smaller than the partition's end sector.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p457918818329">Information similar to the following is displayed:</p>
<pre class="screen" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_screen116541323132915">Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Using default value 209715199
@ -132,12 +132,12 @@ Writing superblocks and filesystem accounting information: done</pre>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1758015813211">The formatting takes a period of time. Observe the system running status and do not exit.</p>
<div class="notice" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_note29186911243"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p262682811243">The partition sizes supported by file systems vary. Choose an appropriate file system format based on your service requirements.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li1758111811323"><span>Create a mount point.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1038930410141"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_b14814141814249">mkdir</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i20814518172414">&lt;mount-point&gt;</em></p>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li1758111811323"><span>Create a mount point.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1038930410141"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_b14814141814249">mkdir</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i20814518172414">mount-point</em></p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p6697580910132">In this example, the <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b97471244387">/mnt/sdc</strong> mount point is created.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p9581128153219"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b258111873210">mkdir /mnt/sdc</strong></p>
<div class="note" id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_note1653352162717"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p153319214278">The <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1926517325558">/mnt</strong> directory exists on all Linux systems. If the mount point cannot be created, it may be that the <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b10608636145619">/mnt</strong> directory has been accidentally deleted. You can run <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1583931719296">mkdir -p /mnt/sdc</strong> to create the mount point.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li62473867152927"><span>Mount the new partition on the created mount point.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1011938710557"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_b1142415541314">mount</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i742410512136">&lt;disk-partition&gt;</em> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i174241255130">&lt;mount-point&gt;</em></p>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li62473867152927"><span>Mount the new partition on the created mount point.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p1011938710557"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_b1142415541314">mount</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i742410512136">disk-partition</em> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_i174241255130">mount-point</em></p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p2550130210557">In this example, the <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b10604235896">/dev/vdb1</strong> partition is mounted on <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b175162410917">/mnt/sdc</strong>.</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p5169551152959"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b18041179153011">mount /dev/vdb1 /mnt/sdc</strong></p>
</p></li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_li65228046151616"><span>Check the mount result.</span><p><p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_p50181505151616"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b48980368151616">df -TH</strong></p>
@ -173,7 +173,7 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p621161413262">In this example, run the following command:</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p1521115148260"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_b0213614192618">umount /dev/vdb1</strong></p>
</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li2397162792610">Reload all the content in the <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b842352706104731">/etc/fstab</strong> file.<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p1739714278269"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_b63981278267">mount -a</strong></p>
</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269">Query the file system mounting information.<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p3282133715264"><a name="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269"></a><a name="en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269"></a><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1187012852919">mount</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b17601123382916">|</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1070716324521">grep</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_i2284337112614">&lt;mount-point&gt;</em></p>
</li><li id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269">Query the file system mounting information.<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p3282133715264"><a name="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269"></a><a name="en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_li9280203710269"></a><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1187012852919">mount</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b17601123382916">|</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1070716324521">grep</strong> <em id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_i2284337112614">mount-point</em></p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p3286437112619">In this example, run the following command:</p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p18286123782619"><strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b925094342911">mount</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1725119437291">|</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b15324154395212">grep</strong> <strong id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_b1831387417">/mnt/sdc</strong></p>
<p id="EN-US_TOPIC_0000002520144801__en-us_topic_0000002015136322_en-us_topic_0000001809189108_en-us_topic_0000001808330216_en-us_topic_0142861223_p429163752616">If information similar to the following is displayed, auto mount has taken effect:</p>

6
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@ -3,11 +3,11 @@
<h1 class="topictitle1">Initializing a Windows Data Disk (Windows Server 2019)</h1>
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_section29374781163839"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p12171195813313">This section uses Windows Server 2019 Standard 64bit to describe how to initialize a data disk attached to a <span id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_text1464237810424">server</span> running Windows.</p>
<p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p8817185417191">The maximum disk capacity supported by MBR is 2 TiB, and that supported by GPT is 18 EiB. Therefore, use the GPT partition style if your disk capacity is larger than 2 TiB. To learn more about disk partition styles, see <a href="en-us_topic_0030831623.html">Scenarios and Disk Partitions</a>.</p>
<p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p52314842171548">The method for initializing a disk varies slightly depending on the OS running on the server. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.</p>
<p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001808330348_p52314842171548">The method of initializing a disk varies depending on the OS running on the <span id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855867909_text782125033710">server</span>. The operations described in this section are for reference only. For detailed steps and differences, see the product documentation of the relevant OS.</p>
<div class="notice" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_note13926451175010"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0044524740_p205672613317">When using a disk for the first time, if you have not initialized it, including creating partitions and file systems, the additional space added to this disk in an expansion later may not be normally used.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_section117091356845"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a server and has not been initialized.</li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_ul6229092211568"><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_i934643317327">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001809189104_i1036013617325">Bare Metal Server User Guide</em>.</li></ul>
<div class="section" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_section117091356845"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0044524740_ul28913191171813"><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0044524740_li20771164724419">A data disk has been attached to a server and has not been initialized.</li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808490236_en-us_topic_0044524740_li36962755115557">You have logged in to the <span id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_text10402796185057">server</span>.<ul id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_ul387541411169"><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li197989548398">For how to log in to an ECS, see the <em id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_i1787187204412">Elastic Cloud Server User Guide</em>.</li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_en-us_topic_0000001809189104_en-us_topic_0000001855169089_en-us_topic_0044524740_li7220898115452">For how to log in to a BMS, see the <em id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000002051334113_i11197136164415">Bare Metal Server User Guide</em>.</li></ul>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_section7988288594"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_ol1925382155916"><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_li15660943424"><span>On the desktop of <span id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_text12200154716219">the server</span>, click the start icon in the lower left corner.</span><p><p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p108673184319">The <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b842352706215049">Windows Server</strong> window is displayed.</p>
@ -17,7 +17,7 @@
<div class="fignone" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_fig11577433192617"><span class="figcap"><b>Figure 2 </b>Computer Management</span><br><span><img id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_image1964185645119" src="en-us_image_0000002301721718.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_li6229732152512"><span>Choose <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b8638466">Storage</strong> &gt; <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b10637330">Disk Management</strong>.</span><p><div class="p" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p11760167268">Disks are displayed in the right pane. If there is a disk that is not initialized, the system will prompt you with the <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b14334732182418">Initialize Disk</strong> dialog box.<div class="fignone" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_fig11358119588"><span class="figcap"><b>Figure 3 </b>Disk list</span><br><span><img id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_image16521250165416" src="en-us_image_0000002335561333.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_li2535853320"><span>In the <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b20212184910251">Initialize Disk</strong> dialog box, the to-be-initialized disk is selected. Select a disk partition style and click <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b11120628113016">OK</strong>. In this example, <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b7881113093010">GPT (GUID Partition Table)</strong> is selected.</span><p><div class="p" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p115521330048">The <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_b287214001">Computer Management</strong> window is displayed.<div class="fignone" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_fig68332918241"><span class="figcap"><b>Figure 4 </b>Computer Management</span><br><span><img id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_image37491117105518" src="en-us_image_0000002335521125.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_li2535853320"><span>In the <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b20212184910251">Initialize Disk</strong> dialog box, the to-be-initialized disk is selected. Select a disk partition style and click <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b11120628113016">OK</strong>. In this example, <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_b7881113093010">GPT (GUID Partition Table)</strong> is selected.</span><p><div class="p" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p115521330048">The <strong id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_b427913566">Computer Management</strong> window is displayed.<div class="fignone" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_fig68332918241"><span class="figcap"><b>Figure 4 </b>Computer Management</span><br><span><img id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_image37491117105518" src="en-us_image_0000002335521125.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
<div class="p" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_p16552123015416"><div class="notice" id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_note9642468151238"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0085245975_p11834286151113">The maximum disk size supported by MBR is 2 TiB, and that supported by GPT is 18 EiB. Because an EVS data disk currently supports up to 32 TiB, use GPT if your disk size is greater than 2 TiB.</p>
<p id="EN-US_TOPIC_0000002520224813__en-us_topic_0000002051215073_en-us_topic_0000001855947925_en-us_topic_0000001808330348_en-us_topic_0085245975_p612681541585">If the partition style is changed after the disk has been used, all data on the disk will be lost, so take care to select an appropriate partition style when initializing the disk. If you must change the partition style to GPT after a disk has been used, it is recommended that you back up the disk data before the change.</p>

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<ol id="EN-US_TOPIC_0013771092__ol1580125031315"><li id="EN-US_TOPIC_0013771092__li158065010135">On the ECS details page, view the ECS specifications.<div class="fignone" id="EN-US_TOPIC_0013771092__fig14561414141716"><span class="figcap"><b>Figure 1 </b>Viewing ECS specifications</span><br><span><img id="EN-US_TOPIC_0013771092__image56471828183314" src="en-us_image_0000002351464146.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0013771092__li530413618147">Check the specifications tables in <a href="en-us_topic_0035470096.html">ECS Types</a> for the virtualization type.</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_section57753505172833"><h4 class="sectiontitle">Notes</h4><ul id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_ul35475327193536"><li id="EN-US_TOPIC_0013771092__li059731619453">The ECS needs to be stopped during the specification modification, so you are advised to perform this operation during off-peak hours.</li><li id="EN-US_TOPIC_0013771092__li168827587416">During the specification modification, do not perform any operation on the <span id="EN-US_TOPIC_0013771092__text624921414422">ECS</span>, such as stopping or restarting the ECS. Otherwise, the modification will fail.</li><li id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_li63799810105126">Downgrading ECS specifications (vCPUs or memory) will reduce performance.</li><li id="EN-US_TOPIC_0013771092__li344174672418">Certain ECS types do not support specification modification. For details about ECS types and functions, see <a href="en-us_topic_0132345719.html">ECS Specifications</a>. For details about constraints on using different types of ECSs, see their notes.</li><li id="EN-US_TOPIC_0013771092__li143963249488">When the disk status is <strong id="EN-US_TOPIC_0013771092__b1045710382410">Expanding</strong>, you are not allowed to modify the specifications of the <span id="EN-US_TOPIC_0013771092__text163331642194016">ECS</span> where the disk is attached.</li><li id="EN-US_TOPIC_0013771092__li14961154101510">Before modifying the specifications of a Windows ECS, modify the SAN policy to prevent disks from going offline after the specifications are modified. For details, see <a href="en-us_topic_0114225937.html">Why Does a Disk Attached to a Windows ECS Go Offline?</a></li><li id="EN-US_TOPIC_0013771092__li883917325184">Before modifying specifications, make sure that the <span id="EN-US_TOPIC_0013771092__text17235243154011">ECS</span> has been stopped.</li></ul>
<div class="section" id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_section57753505172833"><h4 class="sectiontitle">Notes</h4><ul id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_ul35475327193536"><li id="EN-US_TOPIC_0013771092__li059731619453">The ECS needs to be stopped during the specification modification, so you are advised to perform this operation during off-peak hours.</li><li id="EN-US_TOPIC_0013771092__li168827587416">During the specification modification, do not perform any operation on the <span id="EN-US_TOPIC_0013771092__text624921414422">ECS</span>, such as stopping or restarting the ECS. Otherwise, the modification will fail.</li><li id="EN-US_TOPIC_0013771092__en-us_topic_0013859511_li63799810105126">Downgrading ECS specifications (vCPUs or memory) will reduce performance.</li><li id="EN-US_TOPIC_0013771092__li344174672418">Certain ECS types do not support specification modification. For details about ECS types and functions, see <a href="en-us_topic_0132345719.html">ECS Specifications</a>. For details about constraints on using different types of ECSs, see their notes.</li><li id="EN-US_TOPIC_0013771092__li143963249488">When the disk status is <strong id="EN-US_TOPIC_0013771092__b1045710382410">Expanding</strong>, you are not allowed to modify the specifications of the <span id="EN-US_TOPIC_0013771092__text163331642194016">ECS</span> where the disk is attached.</li><li id="EN-US_TOPIC_0013771092__li14961154101510">Before modifying the specifications of a Windows ECS, modify the SAN policy to prevent disks from going offline after the specifications are modified. For details, see <a href="en-us_topic_0114225937.html">Why Does a Disk Attached to a Windows ECS Go Offline?</a></li><li id="EN-US_TOPIC_0013771092__li883917325184">Before modifying specifications, make sure that the <span id="EN-US_TOPIC_0013771092__text17235243154011">ECS</span> has been stopped.</li><li id="EN-US_TOPIC_0013771092__li9558123354216">After earlier-generation ECSs are upgraded to <em id="EN-US_TOPIC_0013771092__i681411479587">x</em>9 generations, they can only be upgraded but cannot be downgraded to earlier generations.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0013771092__section997143905215"><h4 class="sectiontitle">Step 1: Modify Specifications</h4><ol id="EN-US_TOPIC_0013771092__ol97324075216"><li id="EN-US_TOPIC_0013771092__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0013771092__li464234814566">Click <span><img id="EN-US_TOPIC_0013771092__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771092__li17112406525">Under <strong id="EN-US_TOPIC_0013771092__b139798429452"><span id="EN-US_TOPIC_0013771092__text14978114215453">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771092__b179795429455">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771092__li117214409522">On the <strong id="EN-US_TOPIC_0013771092__b1234022165217">Elastic Cloud Server</strong> page, view the status of the target <span id="EN-US_TOPIC_0013771092__text10467144714020">ECS</span>.<p id="EN-US_TOPIC_0013771092__p144608369486">If the ECS is not in <strong id="EN-US_TOPIC_0013771092__b842352706113828">Stopped</strong> state, choose <strong id="EN-US_TOPIC_0013771092__b842352706113834">More</strong> &gt; <strong id="EN-US_TOPIC_0013771092__b842352706123127">Stop</strong> in the <strong id="EN-US_TOPIC_0013771092__b133847578419153">Operation</strong> column.</p>
<div class="section" id="EN-US_TOPIC_0013771092__section997143905215"><h4 class="sectiontitle">Step 1: Modify Specifications</h4><ol id="EN-US_TOPIC_0013771092__ol97324075216"><li id="EN-US_TOPIC_0013771092__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0013771092__li464234814566">Click <span><img id="EN-US_TOPIC_0013771092__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771092__li17112406525">Under <strong id="EN-US_TOPIC_0013771092__b4597131810228"><span id="EN-US_TOPIC_0013771092__text98791258182817">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771092__b1459751811221">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771092__li117214409522">On the <strong id="EN-US_TOPIC_0013771092__b1234022165217">Elastic Cloud Server</strong> page, view the status of the target <span id="EN-US_TOPIC_0013771092__text10467144714020">ECS</span>.<p id="EN-US_TOPIC_0013771092__p144608369486">If the ECS is not in <strong id="EN-US_TOPIC_0013771092__b842352706113828">Stopped</strong> state, choose <strong id="EN-US_TOPIC_0013771092__b842352706113834">More</strong> &gt; <strong id="EN-US_TOPIC_0013771092__b842352706123127">Stop</strong> in the <strong id="EN-US_TOPIC_0013771092__b133847578419153">Operation</strong> column.</p>
</li><li id="EN-US_TOPIC_0013771092__li572184075211">Choose <strong id="EN-US_TOPIC_0013771092__b25955399219229">More</strong> &gt; <strong id="EN-US_TOPIC_0013771092__b84235270619250">Modify Specifications</strong> in the <strong id="EN-US_TOPIC_0013771092__b211788459919229">Operation</strong> column.<p id="EN-US_TOPIC_0013771092__p20946954194414">The <strong id="EN-US_TOPIC_0013771092__b9744134517453">Modify ECS Specifications</strong> page is displayed.</p>
</li><li id="EN-US_TOPIC_0013771092__li137218401522">Select a new <span id="EN-US_TOPIC_0013771092__text1626718488409">ECS</span> type, vCPUs, and memory.<div class="fignone" id="EN-US_TOPIC_0013771092__fig113561614164413"><span class="figcap"><b>Figure 2 </b>Modifying specifications</span><br><span><img id="EN-US_TOPIC_0013771092__image7356714174415" src="en-us_image_0000001657891362.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0013771092__li654534825212">(Optional) Set <strong id="EN-US_TOPIC_0013771092__b8423527062212">DeH</strong>.<p id="EN-US_TOPIC_0013771092__p196261841172818">If the ECS is created on a DeH, the system allows you to change the DeH.</p>

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<ul id="EN-US_TOPIC_0013771110__ul10537368143327"><li id="EN-US_TOPIC_0013771110__li39446482143330">To prevent a sudden load increase, you are advised to start or stop <span id="EN-US_TOPIC_0013771110__text15606195613546">ECS</span>s in small batches.</li><li id="EN-US_TOPIC_0013771110__li3892465143327">If an ECS remains in the <strong id="EN-US_TOPIC_0013771110__b7348212444">Restarting</strong> or <strong id="EN-US_TOPIC_0013771110__b1849962519444">Stopping</strong> state for a long time, you can forcibly restart or stop it. In such a case, any unsaved data on the ECS will be lost. Therefore, exercise caution when forcibly restarting or stopping an ECS.</li></ul>
<div class="note" id="EN-US_TOPIC_0013771110__note1763481284"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p1361648584">For bare metal ECSs (with physical flavors) such as C7t ECSs, do not run commands such as <strong id="EN-US_TOPIC_0013771110__b97961308279">shutdown</strong>, <strong id="EN-US_TOPIC_0013771110__b1379780132719">poweroff</strong>, or <strong id="EN-US_TOPIC_0013771110__b37971803278">halt</strong> in the OS because the commands may be invalid or the ECS may fail to be started after being stopped.</p>
</div></div>
<div class="section" id="EN-US_TOPIC_0013771110__section14434185919356"><h4 class="sectiontitle">Starting ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol1815054814377"><li id="EN-US_TOPIC_0013771110__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li464234814566">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li536619270399">Under <strong id="EN-US_TOPIC_0013771110__b415143114319"><span id="EN-US_TOPIC_0013771110__text12526437192810">Computing</span></strong>, select <strong id="EN-US_TOPIC_0013771110__b49771051164320">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li7498532103919">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li5545104233912">Click <strong id="EN-US_TOPIC_0013771110__b106541324145810">Start</strong> above the ECS list.</li><li id="EN-US_TOPIC_0013771110__li725973819117">In the displayed window, click <strong id="EN-US_TOPIC_0013771110__b17440161714518">OK</strong> to start the selected ECSs.<div class="note" id="EN-US_TOPIC_0013771110__note171497211231"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p10150921836">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b1050510213118">Starting</strong> state for more than 30 minutes.</p>
<div class="section" id="EN-US_TOPIC_0013771110__section14434185919356"><h4 class="sectiontitle">Starting ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol1815054814377"><li id="EN-US_TOPIC_0013771110__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li464234814566">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li536619270399">Under <strong id="EN-US_TOPIC_0013771110__b415143114319"><span id="EN-US_TOPIC_0013771110__text12526437192810">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771110__b49771051164320">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li7498532103919">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li5545104233912">Click <strong id="EN-US_TOPIC_0013771110__b106541324145810">Start</strong> above the ECS list.</li><li id="EN-US_TOPIC_0013771110__li725973819117">In the displayed window, click <strong id="EN-US_TOPIC_0013771110__b17440161714518">OK</strong> to start the selected ECSs.<div class="note" id="EN-US_TOPIC_0013771110__note171497211231"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p10150921836">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b1050510213118">Starting</strong> state for more than 30 minutes.</p>
</div></div>
</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0013771110__section1777940307"><h4 class="sectiontitle">Stopping ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol178640702"><li id="EN-US_TOPIC_0013771110__li1138213151040">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li16781401508">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li37815401503">Under <strong id="EN-US_TOPIC_0013771110__b1892394429"><span id="EN-US_TOPIC_0013771110__text1420329547">Computing</span></strong>, select <strong id="EN-US_TOPIC_0013771110__b136848594">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li17788401701">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li1978340107">Click <strong id="EN-US_TOPIC_0013771110__b12444104218120">Stop</strong> above the ECS list.</li><li id="EN-US_TOPIC_0013771110__li1622618482513">In the displayed dialog box, select <strong id="EN-US_TOPIC_0013771110__b86757252614">Forcibly stop the preceding ECSs</strong> based on your service requirements.<div class="caution" id="EN-US_TOPIC_0013771110__note13660133123616"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0013771110__p17595816128">After an ECS is forcibly stopped, unsaved data on the ECS will be lost.</p>
<div class="section" id="EN-US_TOPIC_0013771110__section1777940307"><h4 class="sectiontitle">Stopping ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol178640702"><li id="EN-US_TOPIC_0013771110__li1138213151040">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li16781401508">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li37815401503">Under <strong id="EN-US_TOPIC_0013771110__b1591601945"><span id="EN-US_TOPIC_0013771110__text282549262">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771110__b1536706495">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li17788401701">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li1978340107">Click <strong id="EN-US_TOPIC_0013771110__b12444104218120">Stop</strong> above the ECS list.</li><li id="EN-US_TOPIC_0013771110__li1622618482513">In the displayed dialog box, select <strong id="EN-US_TOPIC_0013771110__b86757252614">Forcibly stop the preceding ECSs</strong> based on your service requirements.<div class="caution" id="EN-US_TOPIC_0013771110__note13660133123616"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0013771110__p17595816128">After an ECS is forcibly stopped, unsaved data on the ECS will be lost.</p>
<p id="EN-US_TOPIC_0013771110__p51026124329">ECSs with physical flavors, such as C7t ECSs, only support the force stop option. Ensure that you have saved all files on those ECSs.</p>
</div></div>
</li><li id="EN-US_TOPIC_0013771110__li16794406015">Click <strong id="EN-US_TOPIC_0013771110__b196941158456">OK</strong> to stop the selected ECSs.<div class="note" id="EN-US_TOPIC_0013771110__note1179134019014"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p19793401906">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b1353172617618">Stopping</strong> state for more than 30 minutes.</p>
</div></div>
</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0013771110__section520563714015"><h4 class="sectiontitle">Restarting ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol1020563717017"><li id="EN-US_TOPIC_0013771110__li6817625745">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li62063371603">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_2" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li42063371017">Under <strong id="EN-US_TOPIC_0013771110__b1468136568"><span id="EN-US_TOPIC_0013771110__text112736530">Computing</span></strong>, select <strong id="EN-US_TOPIC_0013771110__b325060338">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li122061376016">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li5206123715017">Click <strong id="EN-US_TOPIC_0013771110__b1318820253711">Restart</strong> above the ECS list.<div class="caution" id="EN-US_TOPIC_0013771110__note2525114373617"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0013771110__p11653140141014">After an ECS is forcibly restarted, unsaved data on the ECS will be lost.</p>
<div class="section" id="EN-US_TOPIC_0013771110__section520563714015"><h4 class="sectiontitle">Restarting ECSs</h4><ol id="EN-US_TOPIC_0013771110__ol1020563717017"><li id="EN-US_TOPIC_0013771110__li6817625745">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li62063371603">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_2" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li42063371017">Under <strong id="EN-US_TOPIC_0013771110__b726408629"><span id="EN-US_TOPIC_0013771110__text572112343">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771110__b1485416899">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li122061376016">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li5206123715017">Click <strong id="EN-US_TOPIC_0013771110__b1318820253711">Restart</strong> above the ECS list.<div class="caution" id="EN-US_TOPIC_0013771110__note2525114373617"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0013771110__p11653140141014">After an ECS is forcibly restarted, unsaved data on the ECS will be lost.</p>
</div></div>
</li><li id="EN-US_TOPIC_0013771110__li920773710015">Click <strong id="EN-US_TOPIC_0013771110__b45781140971">OK</strong> to restart the selected ECSs.<div class="note" id="EN-US_TOPIC_0013771110__note162076371706"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p620715371007">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b1998114319719">Restarting</strong> state for more than 30 minutes.</p>
</div></div>
</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0013771110__section144572474619"><h4 class="sectiontitle">Deleting an ECS</h4><ol id="EN-US_TOPIC_0013771110__ol2446824134611"><li id="EN-US_TOPIC_0013771110__li52263456415">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li144461024164614">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_3" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li177711582918">Under <strong id="EN-US_TOPIC_0013771110__b57476145407"><span id="EN-US_TOPIC_0013771110__text117474144404">Computing</span></strong>, select <strong id="EN-US_TOPIC_0013771110__b1774841464017">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li04471924194610">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li114473245465">Choose <strong id="EN-US_TOPIC_0013771110__b20250131514119">More</strong> &gt; <strong id="EN-US_TOPIC_0013771110__b1863182592318">Delete</strong> above the ECS list.<div class="note" id="EN-US_TOPIC_0013771110__note17451152419466"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p17451124174618">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b10396155114616">Deleting</strong> state for more than 30 minutes.</p>
<div class="section" id="EN-US_TOPIC_0013771110__section144572474619"><h4 class="sectiontitle">Deleting an ECS</h4><ol id="EN-US_TOPIC_0013771110__ol2446824134611"><li id="EN-US_TOPIC_0013771110__li52263456415">Log in to the management console.</li><li id="EN-US_TOPIC_0013771110__li144461024164614">Click <span><img id="EN-US_TOPIC_0013771110__en-us_topic_0000001825604541_image9499446838_3" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0013771110__li177711582918">Under <strong id="EN-US_TOPIC_0013771110__b57476145407"><span id="EN-US_TOPIC_0013771110__text117474144404">Computing</span></strong>, click <strong id="EN-US_TOPIC_0013771110__b1774841464017">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0013771110__li04471924194610">In the ECS list, select the target ECSs.</li><li id="EN-US_TOPIC_0013771110__li114473245465">Choose <strong id="EN-US_TOPIC_0013771110__b20250131514119">More</strong> &gt; <strong id="EN-US_TOPIC_0013771110__b1863182592318">Delete</strong> above the ECS list.<div class="note" id="EN-US_TOPIC_0013771110__note17451152419466"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0013771110__p17451124174618">Contact the administrator if the ECS has been in the <strong id="EN-US_TOPIC_0013771110__b10396155114616">Deleting</strong> state for more than 30 minutes.</p>
</div></div>
</li></ol>
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<div id="body1435883576187"><div class="section" id="EN-US_TOPIC_0017130261__section3759917014179"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0017130261__p2563394814179">After obtaining <span id="EN-US_TOPIC_0017130261__text95540359913">ECS</span>s, you can view and manage them on the management console. This section describes how to view <span id="EN-US_TOPIC_0017130261__text128503371694">ECS</span> configuration details, including its name, image, system disk, data disks, VPC, network interfaces, security group, <span id="EN-US_TOPIC_0017130261__text1950318107244">EIP</span> address, and bandwidth.</p>
<p id="EN-US_TOPIC_0017130261__p1177410251818">To view the private IP address of an <span id="EN-US_TOPIC_0017130261__text732212402912">ECS</span>, go to the ECS list page.</p>
</div>
<div class="section" id="EN-US_TOPIC_0017130261__section2937894314179"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0017130261__ol3088417414179"><li id="EN-US_TOPIC_0017130261__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0017130261__li464234814566">Click <span><img id="EN-US_TOPIC_0017130261__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0017130261__li1859019014179">Under <strong id="EN-US_TOPIC_0017130261__b926519261414"><span id="EN-US_TOPIC_0017130261__text10265112614113">Computing</span></strong>, click <strong id="EN-US_TOPIC_0017130261__b112653269412">Elastic Cloud Server</strong>.<p id="EN-US_TOPIC_0017130261__p28383428216">The <strong id="EN-US_TOPIC_0017130261__b14377163524112">Elastic Cloud Server</strong> page is displayed. On this page, you can view the <span id="EN-US_TOPIC_0017130261__text173781935144118">ECS</span>s you have created as well as their details such as the specifications, images, and IP addresses.</p>
</li><li id="EN-US_TOPIC_0017130261__li5741957114179">In the search box above the ECS list, select a filter (such as ECS name, ID, or private IP address), enter the corresponding information, and press <strong id="EN-US_TOPIC_0017130261__b20682145420455">Enter</strong>. </li><li id="EN-US_TOPIC_0017130261__li1472787014179">Click the name of the target <span id="EN-US_TOPIC_0017130261__text83910499918">ECS</span>.<p id="EN-US_TOPIC_0017130261__p216070221280">The <span id="EN-US_TOPIC_0017130261__text0939849496">ECS</span> details page is displayed.</p>
</li><li id="EN-US_TOPIC_0017130261__li5210683614179">View the <span id="EN-US_TOPIC_0017130261__text17922750899">ECS</span> details.<p id="EN-US_TOPIC_0017130261__p4939654514179">You can click the tabs and perform operations. For details, see <a href="en-us_topic_0093492517.html">Changing a Security Group</a>, <a href="en-us_topic_0093492518.html">Attaching a Network Interface</a>, <a href="en-us_topic_0183019669.html">Adding Tags</a>, and <a href="en-us_topic_0174917535.html">Binding an EIP</a>.</p>
<div class="section" id="EN-US_TOPIC_0017130261__section2937894314179"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0017130261__ol3088417414179"><li id="EN-US_TOPIC_0017130261__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0017130261__li464234814566">Click <span><img id="EN-US_TOPIC_0017130261__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0017130261__li1859019014179">Under <strong id="EN-US_TOPIC_0017130261__b15966184210267"><span id="EN-US_TOPIC_0017130261__text496624232619">Computing</span></strong>, click <strong id="EN-US_TOPIC_0017130261__b3966154217263">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0017130261__li619184213359">On the <span id="EN-US_TOPIC_0017130261__text1482614432912">ECS</span> list page, view the <span id="EN-US_TOPIC_0017130261__text11024513916">ECS</span>s you have created as well as their details such as the specifications, images, and IP addresses.</li><li id="EN-US_TOPIC_0017130261__li5741957114179">In the search box above the ECS list, select a filter (such as ECS name, ID, or private IP address), enter the corresponding information, and press <strong id="EN-US_TOPIC_0017130261__b20682145420455">Enter</strong>. </li><li id="EN-US_TOPIC_0017130261__li1472787014179">Click the name of the target <span id="EN-US_TOPIC_0017130261__text83910499918">ECS</span>.<p id="EN-US_TOPIC_0017130261__p216070221280">The <span id="EN-US_TOPIC_0017130261__text0939849496">ECS</span> details page is displayed.</p>
</li><li id="EN-US_TOPIC_0017130261__li5210683614179">View the <span id="EN-US_TOPIC_0017130261__text17922750899">ECS</span> details.<p id="EN-US_TOPIC_0017130261__p4939654514179">You can click different tabs to perform the operations described in <a href="en-us_topic_0093492517.html">Changing a Security Group</a>, <a href="en-us_topic_0093492518.html">Attaching a Network Interface</a>, <a href="en-us_topic_0183019669.html">Adding Tags</a>, and <a href="en-us_topic_0174917535.html">Binding an EIP</a>.</p>
</li></ol>
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<div class="fignone" id="EN-US_TOPIC_0018073217__fig12533164315356"><span class="figcap"><b>Figure 1 </b>Remote login</span><br><span><img id="EN-US_TOPIC_0018073217__image17737103783517" src="en-us_image_0000002259727498.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0018073217__li56190747193213">(Optional) When the system displays "Press CTRL+ALT+DELETE to log on", click <strong id="EN-US_TOPIC_0018073217__en-us_topic_0027290684_b842352706201616">Send CtrlAltDel</strong> in the upper part of the remote login page to log in to the ECS.<div class="fignone" id="EN-US_TOPIC_0018073217__en-us_topic_0027290684_fig22996848191913"><span class="figcap"><b>Figure 2 </b>Send CtrlAltDel</span><br><span><img id="EN-US_TOPIC_0018073217__en-us_topic_0027290684_image50805371191913" src="en-us_image_0042322120.png"></span></div>
</li></ol>
<p id="EN-US_TOPIC_0018073217__p17744122114363">If the VNC login still fails, record the resource details and fault occurred time for further fault locating and analysis.</p>
<p id="EN-US_TOPIC_0018073217__p17744122114363">If the VNC login still fails, record the resource details and fault occurrence time for further fault locating and analysis.</p>
</div>
<div class="section" id="EN-US_TOPIC_0018073217__section51421019195617"><a name="EN-US_TOPIC_0018073217__section51421019195617"></a><a name="section51421019195617"></a><h4 class="sectiontitle">Fault Locating</h4><p id="EN-US_TOPIC_0018073217__p13263153715538">If you can log in to the ECS using VNC but cannot log in to it using a remote desktop connection, locate the fault by referring to this section.</p>
<p id="EN-US_TOPIC_0018073217__p163466913016">The following fault causes are sequenced based on their occurrence probability.</p>
@ -134,7 +134,7 @@
<p id="EN-US_TOPIC_0018073217__p10750125101311">After you perform the preceding operations, try to remotely log in to the ECS again.</p>
<div class="section" id="EN-US_TOPIC_0018073217__section9583105919232"><a name="EN-US_TOPIC_0018073217__section9583105919232"></a><a name="section9583105919232"></a><h4 class="sectiontitle">Checking the IP Address Whitelist for SSH Logins (with HSS Enabled)</h4><p id="EN-US_TOPIC_0018073217__p7113171462414">After HSS is enabled, you can configure an IP address whitelist for SSH logins as required. The IP address whitelist controls SSH access to ECSs, effectively preventing account cracking.</p>
<p id="EN-US_TOPIC_0018073217__p1537965917243">After you configure the allowlist, SSH logins will be allowed only from IP addresses in the allowlist.</p>
<ol id="EN-US_TOPIC_0018073217__ol17858115432815"><li id="EN-US_TOPIC_0018073217__li3858554102817">On the <strong id="EN-US_TOPIC_0018073217__b6481153113810">Events</strong> page, check whether a local host IP address is intercepted due to brute force cracking.</li><li id="EN-US_TOPIC_0018073217__li685885412284">Check whether the IP address whitelist for SSH logins has been enabled. If it has been enabled, ensure that the IP address of the local host has been added to the IP address whitelist.<div class="caution" id="EN-US_TOPIC_0018073217__note2090824103216"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><ul id="EN-US_TOPIC_0018073217__ul1937912596242"><li id="EN-US_TOPIC_0018073217__li15379185932417">Before enabling this function, ensure that all IP addresses that need to initiate SSH logins are added to the allowlist. Otherwise, you cannot remotely log in to your ECS through SSH.</li><li id="EN-US_TOPIC_0018073217__li1437935912246">Exercise caution when adding a local IP address to the allowlist. This will make HSS no longer restrict access from this IP address to your ECSs.</li></ul>
<ol id="EN-US_TOPIC_0018073217__ol17858115432815"><li id="EN-US_TOPIC_0018073217__li3858554102817">On the <strong id="EN-US_TOPIC_0018073217__b6481153113810">Events</strong> page, check whether a local host IP address is intercepted due to brute force cracking.</li><li id="EN-US_TOPIC_0018073217__li685885412284">Check whether the IP address whitelist for SSH logins has been enabled. If it has been enabled, ensure that the IP address of the local host has been added to the IP address whitelist.<div class="caution" id="EN-US_TOPIC_0018073217__note2090824103216"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><ul id="EN-US_TOPIC_0018073217__ul1937912596242"><li id="EN-US_TOPIC_0018073217__li15379185932417">Before enabling the whitelist to control SSH logins, ensure that all IP addresses that need to initiate SSH logins are added to the allowlist. Otherwise, you cannot remotely log in to your ECS through SSH.</li><li id="EN-US_TOPIC_0018073217__li1437935912246">Exercise caution when adding a local IP address to the allowlist. This will make HSS no longer restrict access from this IP address to your ECSs.</li></ul>
</div></div>
<p id="EN-US_TOPIC_0018073217__p19801141612346">For more details, see <a href="https://docs.otc.t-systems.com/host-security-service/umn/enabling_hss/common_security_configuration/configuring_server_login_protection.html#hss-01-0566" target="_blank" rel="noopener noreferrer">Configuring Server Login Protection</a>.</p>
</li></ol>
@ -143,13 +143,13 @@
<p id="EN-US_TOPIC_0018073217__en-us_topic_0162447875_p845918512349">Log in to the ECS using VNC and enable the remote desktop protocol.</p>
</div>
<div class="section" id="EN-US_TOPIC_0018073217__section58504535542"><a name="EN-US_TOPIC_0018073217__section58504535542"></a><a name="section58504535542"></a><h4 class="sectiontitle">Checking Whether the Access Is Blocked by Antivirus Software</h4><p id="EN-US_TOPIC_0018073217__p1452222592019">Third-party antivirus software may lead to a failure in accessing the ECS.</p>
<p id="EN-US_TOPIC_0018073217__p8781145617549">If third-party antivirus software is running, check whether the remote connection is blocked by the software. If the remote connection is blocked, add the <span id="EN-US_TOPIC_0018073217__text92935549113">EIP</span> bound to the ECS to the whitelist of the antivirus software and try to access the ECS again.</p>
<p id="EN-US_TOPIC_0018073217__p8781145617549">If third-party antivirus software is running, check whether the remote connection is blocked by the software. If the remote connection is blocked, add the ECS <span id="EN-US_TOPIC_0018073217__text92935549113">EIP</span> to the whitelist of the antivirus software and try to access the ECS again.</p>
<p id="EN-US_TOPIC_0018073217__p8796113519412">You can also disable or uninstall the third-party antivirus software and try to remotely log in to the ECS again.</p>
</div>
<div class="section" id="EN-US_TOPIC_0018073217__section23854594274"><a name="EN-US_TOPIC_0018073217__section23854594274"></a><a name="section23854594274"></a><h4 class="sectiontitle">Checking Whether an Error Occurred During a Remote Login</h4><p id="EN-US_TOPIC_0018073217__p112001124133117">If an error message is displayed during remote login, check the operation guide based on the error information.</p>
<p id="EN-US_TOPIC_0018073217__p19875155920158">If the fault persists, record the resource details and fault occurred time, and contact technical support for assistance</p>
<p id="EN-US_TOPIC_0018073217__p19875155920158">If the fault persists, record the resource details and fault occurrence time, and contact technical support for assistance</p>
</div>
<p id="EN-US_TOPIC_0018073217__p73821810115012">If the fault persists after the preceding operations are performed, record the resource details and fault occurred time, and contact customer service for technical support.</p>
<p id="EN-US_TOPIC_0018073217__p73821810115012">If the fault persists after the preceding operations are performed, record the resource details and fault occurrence time, and contact customer service for technical support.</p>
</div>
<div>
<div class="familylinks">

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@ -12,7 +12,7 @@
<p id="EN-US_TOPIC_0021426802__p1448445101313">Download the <strong id="EN-US_TOPIC_0021426802__b550335273211">ntfs-3g</strong> and <strong id="EN-US_TOPIC_0021426802__b17173155519327">chntpw</strong> software packages of the version required by the temporary <span id="EN-US_TOPIC_0021426802__text1974473512204">ECS</span> OS and install them.</p>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0021426802__section1052621215437"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0021426802__ol11891624125717"><li id="EN-US_TOPIC_0021426802__li168911724165711">Stop the original ECS and detach the system disk.<ol type="a" id="EN-US_TOPIC_0021426802__ol64363114145227"><li id="EN-US_TOPIC_0021426802__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0021426802__li464234814566">Click <span><img id="EN-US_TOPIC_0021426802__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0021426802__li32846719144331">Under <strong id="EN-US_TOPIC_0021426802__b37391728971"><span id="EN-US_TOPIC_0021426802__text2739128471">Computing</span></strong>, click <strong id="EN-US_TOPIC_0021426802__b1673922817716">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0021426802__li16925428202157">Stop the original Windows <span id="EN-US_TOPIC_0021426802__text131511138202011">ECS</span>, switch to the ECS details page, and click the <strong id="EN-US_TOPIC_0021426802__b551913512188">Disks</strong> tab.<div class="note" id="EN-US_TOPIC_0021426802__note32654683101914"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0021426802__p25456698101914">Do not forcibly stop the Windows <span id="EN-US_TOPIC_0021426802__text15900121411184">ECS</span>. Otherwise, password reset may fail.</p>
<div class="section" id="EN-US_TOPIC_0021426802__section1052621215437"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0021426802__ol11891624125717"><li id="EN-US_TOPIC_0021426802__li168911724165711">Stop the original ECS and detach the system disk.<ol type="a" id="EN-US_TOPIC_0021426802__ol64363114145227"><li id="EN-US_TOPIC_0021426802__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0021426802__li464234814566">Click <span><img id="EN-US_TOPIC_0021426802__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0021426802__li32846719144331">Under <strong id="EN-US_TOPIC_0021426802__b831454315275"><span id="EN-US_TOPIC_0021426802__text1531404392711">Computing</span></strong>, click <strong id="EN-US_TOPIC_0021426802__b153141443122716">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0021426802__li16925428202157">Stop the original Windows <span id="EN-US_TOPIC_0021426802__text131511138202011">ECS</span>, switch to the ECS details page, and click the <strong id="EN-US_TOPIC_0021426802__b551913512188">Disks</strong> tab.<div class="note" id="EN-US_TOPIC_0021426802__note32654683101914"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0021426802__p25456698101914">Do not forcibly stop the Windows <span id="EN-US_TOPIC_0021426802__text15900121411184">ECS</span>. Otherwise, password reset may fail.</p>
</div></div>
</li><li id="EN-US_TOPIC_0021426802__li49674320202157"><a name="EN-US_TOPIC_0021426802__li49674320202157"></a><a name="li49674320202157"></a>Locate the row containing the system disk and click <strong id="EN-US_TOPIC_0021426802__b129721858184120">Detach</strong> to detach the system disk from the ECS.</li></ol>
</li><li id="EN-US_TOPIC_0021426802__li7881114019576">Attach the system disk to the temporary ECS.<ol type="a" id="EN-US_TOPIC_0021426802__ol774330520859"><li id="EN-US_TOPIC_0021426802__li1035192041616">On the details page of the temporary <span id="EN-US_TOPIC_0021426802__text48384863314">ECS</span>, click the <strong id="EN-US_TOPIC_0021426802__b118314814330">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021426802__li12352182016164"><a name="EN-US_TOPIC_0021426802__li12352182016164"></a><a name="li12352182016164"></a>Click <strong id="EN-US_TOPIC_0021426802__b4385152303414">Attach Disk</strong>. In the displayed dialog box, select the system disk detached in step <a href="#EN-US_TOPIC_0021426802__li49674320202157">1.e</a> and attach it to the temporary ECS.</li><li id="EN-US_TOPIC_0021426802__li1800111611817">Remotely log in to the temporary ECS.</li><li id="EN-US_TOPIC_0021426802__li20334892202157">Run the following command to query the system disk partitions attached to the temporary <span id="EN-US_TOPIC_0021426802__text1391538162013">ECS</span>, so you can identify the directory of the system disk:<p id="EN-US_TOPIC_0021426802__p48796301202157"><strong id="EN-US_TOPIC_0021426802__b48318482201615">fdisk -l</strong></p>
@ -43,7 +43,7 @@ Hives that have changed:
Write hive files? (y/n) [n] : y
0&lt;SAM&gt; - OK</pre>
</li></ol>
</li><li id="EN-US_TOPIC_0021426802__li142801656586">Stop the temporary <span id="EN-US_TOPIC_0021426802__text190442162015">ECS</span>, detach the system disk, and attach the system disk back to the original Windows <span id="EN-US_TOPIC_0021426802__text2017694472113">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021426802__ol3839776920224"><li id="EN-US_TOPIC_0021426802__li5152044202157">Stop the temporary <span id="EN-US_TOPIC_0021426802__text87991434202">ECS</span>, go to the <span id="EN-US_TOPIC_0021426802__text73580442210">ECS</span> details page, and click the <strong id="EN-US_TOPIC_0021426802__b112952071229">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021426802__li46368402202157"><a name="EN-US_TOPIC_0021426802__li46368402202157"></a><a name="li46368402202157"></a>Click <strong id="EN-US_TOPIC_0021426802__b842352706163715">Detach</strong> to detach the system disk temporarily attached in step <a href="#EN-US_TOPIC_0021426802__li12352182016164">2.b</a>.</li><li id="EN-US_TOPIC_0021426802__li48376692165527">On the details page of the original Windows <span id="EN-US_TOPIC_0021426802__text9274774373">ECS</span>, click the <strong id="EN-US_TOPIC_0021426802__b027412743720">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021426802__li33256079202157">Click <strong id="EN-US_TOPIC_0021426802__b842352706163842">Attach Disk</strong>. In the displayed dialog box, select the system disk detached in step <a href="#EN-US_TOPIC_0021426802__li46368402202157">4.b</a> and attach it to the original ECS as the system disk.</li></ol>
</li><li id="EN-US_TOPIC_0021426802__li142801656586">Stop the temporary <span id="EN-US_TOPIC_0021426802__text190442162015">ECS</span>, detach the system disk, and attach the system disk back to the original Windows <span id="EN-US_TOPIC_0021426802__text2017694472113">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021426802__ol3839776920224"><li id="EN-US_TOPIC_0021426802__li5152044202157">Stop the temporary <span id="EN-US_TOPIC_0021426802__text87991434202">ECS</span>, go to the <span id="EN-US_TOPIC_0021426802__text73580442210">ECS</span> details page, and click the <strong id="EN-US_TOPIC_0021426802__b112952071229">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021426802__li46368402202157"><a name="EN-US_TOPIC_0021426802__li46368402202157"></a><a name="li46368402202157"></a>Click <strong id="EN-US_TOPIC_0021426802__b842352706163715">Detach</strong> to detach the system disk temporarily attached in <a href="#EN-US_TOPIC_0021426802__li12352182016164">2.b</a>.</li><li id="EN-US_TOPIC_0021426802__li48376692165527">On the details page of the original Windows <span id="EN-US_TOPIC_0021426802__text9274774373">ECS</span>, click the <strong id="EN-US_TOPIC_0021426802__b027412743720">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021426802__li33256079202157">Click <strong id="EN-US_TOPIC_0021426802__b842352706163842">Attach Disk</strong>. In the displayed dialog box, select the system disk detached in step <a href="#EN-US_TOPIC_0021426802__li46368402202157">4.b</a> and attach it to the original ECS as the system disk.</li></ol>
</li><li id="EN-US_TOPIC_0021426802__li1373201565812">Start the original Windows <span id="EN-US_TOPIC_0021426802__text223994542019">ECS</span> and set a new login password.<ol type="a" id="EN-US_TOPIC_0021426802__ol39255285195729"><li id="EN-US_TOPIC_0021426802__li9387854202157">Click <strong id="EN-US_TOPIC_0021426802__b842352706112216">Start</strong> to start the original Windows <span id="EN-US_TOPIC_0021426802__text123151210142310">ECS</span>. After the status becomes <strong id="EN-US_TOPIC_0021426802__b842352706112223">Running</strong>, click <strong id="EN-US_TOPIC_0021426802__b842352706112228">Remote Login</strong> in the <strong id="EN-US_TOPIC_0021426802__b842352706112231">Operation</strong> column.</li><li id="EN-US_TOPIC_0021426802__li65750554202157">Click <strong id="EN-US_TOPIC_0021426802__b842352706164129">Start</strong>. Enter <strong id="EN-US_TOPIC_0021426802__b842352706152134">CMD</strong> in the search box and press <strong id="EN-US_TOPIC_0021426802__b842352706152136">Enter</strong>.</li><li id="EN-US_TOPIC_0021426802__li24194619202157">Run the command below to set a new password. The new password must meet the password complexity requirements. For details, see <a href="en-us_topic_0035643949.html">Overview of Password Reset</a>.<p id="EN-US_TOPIC_0021426802__p13607117202157"><strong id="EN-US_TOPIC_0021426802__b5331115091414">net user</strong> <strong id="EN-US_TOPIC_0021426802__b53311150111415">Administrator</strong> <em id="EN-US_TOPIC_0021426802__i1033165019140">&lt;new-password&gt;</em></p>
</li></ol>
</li></ol>

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@ -3,13 +3,13 @@
<h1 class="topictitle1">Resetting the Password of a Linux ECS by Attaching a System Disk to a Temporary ECS</h1>
<div id="body1446517288090"><div class="section" id="EN-US_TOPIC_0021427650__section17131859112916"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_p557120821469">Keep your password secure. Reset the password if:</p>
<ul id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_ul31424087214650"><li id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_li58960965214655">The password is forgotten.</li><li id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_li1617885210014">The password has expired.</li></ul>
<p id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_p58571173516">This section describes how to reset the password of user <strong id="EN-US_TOPIC_0021427650__b48217366535">root</strong>. After resetting the password, you can log in to the <span id="EN-US_TOPIC_0021427650__text11829143615537">ECS</span>, and change the private key or reset the password of a non-<strong id="EN-US_TOPIC_0021427650__b1283053615310">root</strong> user.</p>
<p id="EN-US_TOPIC_0021427650__en-us_topic_0021426802_p58571173516">This section describes how to reset the root password. After resetting the password, you can log in to the <span id="EN-US_TOPIC_0021427650__text11829143615537">ECS</span> and change the keys or reset passwords for non-root users.</p>
</div>
<div class="section" id="EN-US_TOPIC_0021427650__section35515688202027"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0021427650__ul8978161204218"><li id="EN-US_TOPIC_0021427650__li173731939172510">A backup has been created for the system disk. For details, see <a href="en-us_topic_0000001128604648.html">Backing Up an ECS</a>.</li><li id="EN-US_TOPIC_0021427650__li26258204218">A temporary Linux <span id="EN-US_TOPIC_0021427650__text73281216216">ECS</span> is available. It is located in the same AZ and has the same CPU architecture as the target <span id="EN-US_TOPIC_0021427650__text14544125623011">ECS</span>.</li><li id="EN-US_TOPIC_0021427650__li105056120442">You have bound an <span id="EN-US_TOPIC_0021427650__text1834017561469">EIP</span> to the temporary <span id="EN-US_TOPIC_0021427650__text120075192120">ECS</span>.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0021427650__section9546131644416"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0021427650__ol9263272585"><li id="EN-US_TOPIC_0021427650__li142662745818">Download the script for resetting the password and upload the script to the temporary <span id="EN-US_TOPIC_0021427650__text98881529183210">ECS</span>.<p id="EN-US_TOPIC_0021427650__p168479072216">Contact customer service to obtain the password reset script. Use a connection tool, such as WinSCP, to upload the obtained <strong id="EN-US_TOPIC_0021427650__b17949226145615">changepasswd.sh</strong> script to the temporary <span id="EN-US_TOPIC_0021427650__text19295192804516">ECS</span>.</p>
<p id="EN-US_TOPIC_0021427650__p168471003221">To download WinSCP, log in at <a href="https://winscp.net/" target="_blank" rel="noopener noreferrer">https://winscp.net/</a>.</p>
</li><li id="EN-US_TOPIC_0021427650__li19814359584">Stop the original Linux <span id="EN-US_TOPIC_0021427650__text1479213752113">ECS</span>, detach the system disk from it, and attach the system disk to the temporary <span id="EN-US_TOPIC_0021427650__text184631512123311">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021427650__ol1364041616443"><li id="EN-US_TOPIC_0021427650__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0021427650__li464234814566">Click <span><img id="EN-US_TOPIC_0021427650__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0021427650__li32846719144331">Under <strong id="EN-US_TOPIC_0021427650__b126894472715"><span id="EN-US_TOPIC_0021427650__text12688647979">Computing</span></strong>, click <strong id="EN-US_TOPIC_0021427650__b1689247873">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0021427650__li1864081674412">Stop the original ECS, go to the ECS details page, and click the <strong id="EN-US_TOPIC_0021427650__b670417185202">Disks</strong> tab.<div class="note" id="EN-US_TOPIC_0021427650__note9640151617444"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0021427650__p18640131619443">Do not forcibly stop the original <span id="EN-US_TOPIC_0021427650__text117221691211">ECS</span>. Otherwise, password reset may fail.</p>
</li><li id="EN-US_TOPIC_0021427650__li19814359584">Stop the original Linux <span id="EN-US_TOPIC_0021427650__text1479213752113">ECS</span>, detach the system disk from it, and attach the system disk to the temporary <span id="EN-US_TOPIC_0021427650__text184631512123311">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021427650__ol1364041616443"><li id="EN-US_TOPIC_0021427650__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0021427650__li464234814566">Click <span><img id="EN-US_TOPIC_0021427650__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0021427650__li32846719144331">Under <strong id="EN-US_TOPIC_0021427650__b18496225183912"><span id="EN-US_TOPIC_0021427650__text1449662573920">Computing</span></strong>, click <strong id="EN-US_TOPIC_0021427650__b24961825183920">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0021427650__li1864081674412">Stop the original ECS, go to the ECS details page, and click the <strong id="EN-US_TOPIC_0021427650__b670417185202">Disks</strong> tab.<div class="note" id="EN-US_TOPIC_0021427650__note9640151617444"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0021427650__p18640131619443">Do not forcibly stop the original <span id="EN-US_TOPIC_0021427650__text117221691211">ECS</span>. Otherwise, password reset may fail.</p>
</div></div>
</li><li id="EN-US_TOPIC_0021427650__li5640121684418"><a name="EN-US_TOPIC_0021427650__li5640121684418"></a><a name="li5640121684418"></a>Locate the row containing the system disk to be detached and click <strong id="EN-US_TOPIC_0021427650__b12274302104828">Detach</strong> to detach the system disk from the ECS.</li></ol>
</li><li id="EN-US_TOPIC_0021427650__li821617118326"><a name="EN-US_TOPIC_0021427650__li821617118326"></a><a name="li821617118326"></a>Attach the system disk to the temporary ECS.<ol type="a" id="EN-US_TOPIC_0021427650__ol1656111173329"><li id="EN-US_TOPIC_0021427650__li7640161614443">On the details page of the temporary <span id="EN-US_TOPIC_0021427650__text1769813125342">ECS</span>, click the <strong id="EN-US_TOPIC_0021427650__b137031612123415">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021427650__li10640916124410">Click <strong id="EN-US_TOPIC_0021427650__b1692035123020">Attach Disk</strong>. In the displayed dialog box, select the system disk detached in step <a href="#EN-US_TOPIC_0021427650__li5640121684418">2.e</a> and attach it to the temporary ECS.</li></ol>
@ -29,7 +29,7 @@
</li><li id="EN-US_TOPIC_0021427650__li17168154265617">Change <strong id="EN-US_TOPIC_0021427650__b7512121313119">PermitRootLogin no</strong> to <strong id="EN-US_TOPIC_0021427650__b13201131713114">PermitRootLogin yes</strong>.<p id="EN-US_TOPIC_0021427650__p27713442561">Alternatively, uncomment <strong id="EN-US_TOPIC_0021427650__b1761731132519">PermitRootLogin yes</strong>.</p>
</li><li id="EN-US_TOPIC_0021427650__li875859105919">Change the value of <strong id="EN-US_TOPIC_0021427650__b267464515114">AllowUsers</strong> to <strong id="EN-US_TOPIC_0021427650__b9363258517">root</strong>.<p id="EN-US_TOPIC_0021427650__p1443514104116">Search for <strong id="EN-US_TOPIC_0021427650__b107175611310">AllowUsers</strong> in the file. If <strong id="EN-US_TOPIC_0021427650__b157110562031">AllowUsers</strong> is missing, add <strong id="EN-US_TOPIC_0021427650__b8290142812573">AllowUsers root</strong> at the end of the file.</p>
</li></ul>
</li><li id="EN-US_TOPIC_0021427650__li43791402591">Stop the temporary <span id="EN-US_TOPIC_0021427650__text119171718218">ECS</span>, detach the system disk, attach the system disk to the original Linux <span id="EN-US_TOPIC_0021427650__text11751134103714">ECS</span>, and restart the original Linux <span id="EN-US_TOPIC_0021427650__text5682103773718">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021427650__ol166409160448"><li id="EN-US_TOPIC_0021427650__li10640201613447">Stop the temporary <span id="EN-US_TOPIC_0021427650__text14944171882117">ECS</span>, go to the ECS details page, and click the <strong id="EN-US_TOPIC_0021427650__b1160311163815">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021427650__li964031614447"><a name="EN-US_TOPIC_0021427650__li964031614447"></a><a name="li964031614447"></a>Click <strong id="EN-US_TOPIC_0021427650__b1539582593019">Detach</strong> to detach the data disk temporarily attached in step <a href="#EN-US_TOPIC_0021427650__li821617118326">3</a>.</li><li id="EN-US_TOPIC_0021427650__li18640151664410">On the details page of the original Linux <span id="EN-US_TOPIC_0021427650__text51188503815">ECS</span>, click the <strong id="EN-US_TOPIC_0021427650__b712475113816">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021427650__li2064071618440">Click <strong id="EN-US_TOPIC_0021427650__b04105527398">Attach Disk</strong>. In the displayed dialog box, select the data disk detached in <a href="#EN-US_TOPIC_0021427650__li964031614447">6.b</a>.</li></ol>
</li><li id="EN-US_TOPIC_0021427650__li43791402591">Stop the temporary <span id="EN-US_TOPIC_0021427650__text1213019553373">ECS</span>, detach the system disk, and attach it back to the original Linux <span id="EN-US_TOPIC_0021427650__text161091714210">ECS</span>. Then, restart the original Linux <span id="EN-US_TOPIC_0021427650__text713035516377">ECS</span>.<ol type="a" id="EN-US_TOPIC_0021427650__ol166409160448"><li id="EN-US_TOPIC_0021427650__li10640201613447">Stop the temporary <span id="EN-US_TOPIC_0021427650__text14944171882117">ECS</span>, go to the ECS details page, and click the <strong id="EN-US_TOPIC_0021427650__b1160311163815">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021427650__li964031614447"><a name="EN-US_TOPIC_0021427650__li964031614447"></a><a name="li964031614447"></a>Click <strong id="EN-US_TOPIC_0021427650__b8569149143716">Detach</strong> to detach the system disk temporarily attached in <a href="#EN-US_TOPIC_0021427650__li821617118326">3</a>.</li><li id="EN-US_TOPIC_0021427650__li18640151664410">On the details page of the original Linux <span id="EN-US_TOPIC_0021427650__text51188503815">ECS</span>, click the <strong id="EN-US_TOPIC_0021427650__b712475113816">Disks</strong> tab.</li><li id="EN-US_TOPIC_0021427650__li2064071618440">Click <strong id="EN-US_TOPIC_0021427650__b13111931133718">Attach Disk</strong>. In the displayed dialog box, select the system disk detached in <a href="#EN-US_TOPIC_0021427650__li964031614447">6.b</a>.</li></ol>
</li><li id="EN-US_TOPIC_0021427650__li1067514584016">Restart the original Linux <span id="EN-US_TOPIC_0021427650__text289020202118">ECS</span>.</li></ol>
</div>
</div>

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@ -6,11 +6,11 @@
<div class="section" id="EN-US_TOPIC_0024911405__section37447471165714"><h4 class="sectiontitle">Notes</h4><ul id="EN-US_TOPIC_0024911405__ul52549321513"><li id="EN-US_TOPIC_0024911405__li22547311515">After the OS is reinstalled, the IP and MAC addresses of the <span id="EN-US_TOPIC_0024911405__text510665714187">ECS</span> remain unchanged.</li><li id="EN-US_TOPIC_0024911405__li714412518167">Reinstalling the OS clears the data in all partitions of the system disk, including the system partition. Back up data before reinstalling the OS. For details, see <a href="en-us_topic_0000001128604648.html">Backing Up an ECS</a>.</li><li id="EN-US_TOPIC_0024911405__li32546316151">Reinstalling the OS does not affect data in data disks.</li><li id="EN-US_TOPIC_0024911405__li1619118131711">Do not perform any operations on the ECS immediately after its OS is reinstalled. Wait for several minutes until the system successfully injects the password or key. Otherwise, the injection may fail, and the ECS cannot be accessed.</li><li id="EN-US_TOPIC_0024911405__li1225453201512">After the OS is reinstalled, the password for logging in to the ECS is reset. To retrieve the password, perform the following operations:<ul id="EN-US_TOPIC_0024911405__ul47135949174127"><li id="EN-US_TOPIC_0024911405__li64411840174127">For a Linux ECS, log in to it using the key and set a new password. For instructions about how to log in to an ECS using a key pair, see <a href="en-us_topic_0017955380.html">Logging In to a Linux ECS Using an SSH Key Pair</a>.</li><li id="EN-US_TOPIC_0024911405__li49976570174127">For a Windows ECS, retrieve the password by following the instructions provided in <a href="en-us_topic_0031107266.html">Obtaining the Password for Logging In to a Windows ECS</a>.</li></ul>
</li><li id="EN-US_TOPIC_0024911405__li18581102418264">You can choose to encrypt the system disk of an ECS during OS reinstallation.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0024911405__section4500313111616"><h4 class="sectiontitle">Constraints</h4><ul id="EN-US_TOPIC_0024911405__ul66848156141149"><li id="EN-US_TOPIC_0024911405__li49552913144725">The EVS disk quota must be greater than 0.</li><li id="EN-US_TOPIC_0024911405__li19114641141149">If the target <span id="EN-US_TOPIC_0024911405__text4665833132318">ECS</span> is created using a private image, ensure that the private image is available.</li><li id="EN-US_TOPIC_0024911405__li1287917124216">If an ECS OS is to be reinstalled using a full-ECS image, the ECS system disk can be encrypted.</li></ul>
<div class="section" id="EN-US_TOPIC_0024911405__section4500313111616"><h4 class="sectiontitle">Constraints</h4><ul id="EN-US_TOPIC_0024911405__ul66848156141149"><li id="EN-US_TOPIC_0024911405__li49552913144725">The EVS disk quotas must be greater than 0.</li><li id="EN-US_TOPIC_0024911405__li19114641141149">If the target <span id="EN-US_TOPIC_0024911405__text4665833132318">ECS</span> is created using a private image, ensure that the private image is available.</li><li id="EN-US_TOPIC_0024911405__li1287917124216">If an ECS OS is to be reinstalled using a full-ECS image, the ECS system disk can be encrypted.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0024911405__section2641260214160"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0024911405__ul5982276195952"><li id="EN-US_TOPIC_0024911405__li31738699195952">The target <span id="EN-US_TOPIC_0024911405__text158042287207">ECS</span> is stopped.</li><li id="EN-US_TOPIC_0024911405__li4397542520019">The target <span id="EN-US_TOPIC_0024911405__text18074162111">ECS</span> has a system disk attached.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0024911405__section58299059111554"><a name="EN-US_TOPIC_0024911405__section58299059111554"></a><a name="section58299059111554"></a><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0024911405__ol22026412143346"><li id="EN-US_TOPIC_0024911405__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0024911405__li464234814566">Click <span><img id="EN-US_TOPIC_0024911405__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0024911405__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628">Under <strong id="EN-US_TOPIC_0024911405__b8848192173019"><span id="EN-US_TOPIC_0024911405__text1980763462719">Computing</span></strong>, click <strong id="EN-US_TOPIC_0024911405__b184817215309">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0024911405__li237311112214">Locate the row containing the target <span id="EN-US_TOPIC_0024911405__text98741103374">ECS</span> and choose <strong id="EN-US_TOPIC_0024911405__b1487431023717">More</strong> &gt; <strong id="EN-US_TOPIC_0024911405__b38751410113715">Manage Image/Backup</strong> &gt; <strong id="EN-US_TOPIC_0024911405__b787591017371">Reinstall OS</strong> in the <strong id="EN-US_TOPIC_0024911405__b188750101378">Operation</strong> column.<p id="EN-US_TOPIC_0024911405__p10373171117212">Only stopped ECSs support OS reinstallation. If the <span id="EN-US_TOPIC_0024911405__text1039504800">ECS</span> is not stopped, stop it before proceeding with the reinstallation.</p>
<div class="section" id="EN-US_TOPIC_0024911405__section58299059111554"><a name="EN-US_TOPIC_0024911405__section58299059111554"></a><a name="section58299059111554"></a><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0024911405__ol22026412143346"><li id="EN-US_TOPIC_0024911405__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0024911405__li464234814566">Click <span><img id="EN-US_TOPIC_0024911405__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0024911405__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628">Under <strong id="EN-US_TOPIC_0024911405__b1793013302020"><span id="EN-US_TOPIC_0024911405__text1980763462719">Computing</span></strong>, click <strong id="EN-US_TOPIC_0024911405__b19930103102010">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0024911405__li237311112214">Locate the row containing the target <span id="EN-US_TOPIC_0024911405__text98741103374">ECS</span> and choose <strong id="EN-US_TOPIC_0024911405__b1487431023717">More</strong> &gt; <strong id="EN-US_TOPIC_0024911405__b38751410113715">Manage Image/Backup</strong> &gt; <strong id="EN-US_TOPIC_0024911405__b787591017371">Reinstall OS</strong> in the <strong id="EN-US_TOPIC_0024911405__b188750101378">Operation</strong> column.<p id="EN-US_TOPIC_0024911405__p10373171117212">Only stopped ECSs support OS reinstallation. If the <span id="EN-US_TOPIC_0024911405__text1171959049">ECS</span> is not stopped, stop it before proceeding with the reinstallation.</p>
<div class="fignone" id="EN-US_TOPIC_0024911405__fig44511950164"><span class="figcap"><b>Figure 1 </b>Reinstalling an OS</span><br><span><img id="EN-US_TOPIC_0024911405__image131496356577" src="en-us_image_0000002524673400.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0024911405__li8531832155310">(Optional) Select the <strong id="EN-US_TOPIC_0024911405__b67851632192510">Encrypted</strong> option to encrypt the system disk during OS reinstallation.<p id="EN-US_TOPIC_0024911405__p767712438280">To enable encryption, click <span class="uicontrol" id="EN-US_TOPIC_0024911405__en-us_topic_0163572589_en-us_topic_0144542112_uicontrol528614138616"><b>Create Xrole</b></span> to grant KMS access permissions to EVS. If you have the granting permission, grant KMS access permissions to EVS. If you do not have the granting permission, contact the user who has the Security Administrator permissions to grant KMS access permissions. For details, see <a href="en-us_topic_0047272493.html">Can All Users Use the Encryption Feature?</a></p>
<p id="EN-US_TOPIC_0024911405__en-us_topic_0144542112_p228631310615">Encryption parameters are as follows:</p>

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@ -11,11 +11,11 @@
</li><li id="EN-US_TOPIC_0030878383__li795013166306">Configure required parameters.<p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p10544530320"><a name="EN-US_TOPIC_0030878383__li795013166306"></a><a name="li795013166306"></a>You can click <strong id="EN-US_TOPIC_0030878383__b21273818145">+</strong> to add more inbound rules.</p>
<div class="fignone" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_fig1786518124129"><span class="figcap"><b>Figure 1 </b>Adding inbound rules</span><br><span><img id="EN-US_TOPIC_0030878383__image42921342115516" src="en-us_image_0000002385340709.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_table111445216564" width="90%" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_row939234412443"><th align="left" class="cellrowborder" valign="top" width="12.67%" id="mcps1.3.2.2.8.3.2.4.1.1"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p18392194484413"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b263369535">Parameter</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_table111445216564" width="90%" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_row939234412443"><th align="left" class="cellrowborder" valign="top" width="12.67%" id="mcps1.3.2.2.8.3.2.4.1.1"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p18392194484413"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b583091102">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="69.33%" id="mcps1.3.2.2.8.3.2.4.1.2"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1639234444413"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1147234038">Description</strong></p>
<th align="left" class="cellrowborder" valign="top" width="69.33%" id="mcps1.3.2.2.8.3.2.4.1.2"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1639234444413"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b703828526">Description</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.2.8.3.2.4.1.3"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1739294416447"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1631696207">Example Value</strong></p>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.2.8.3.2.4.1.3"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1739294416447"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b620037618">Example Value</strong></p>
</th>
</tr>
</thead>
@ -29,7 +29,7 @@
</tr>
<tr id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_row10392124412442"><td class="cellrowborder" valign="top" width="12.67%" headers="mcps1.3.2.2.8.3.2.4.1.1 "><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p103923441441">Action</p>
</td>
<td class="cellrowborder" valign="top" width="69.33%" headers="mcps1.3.2.2.8.3.2.4.1.2 "><div class="p" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p123921244154413">The value can be <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1522795213421">Allow</strong> or <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b922865264219">Deny</strong>.<ul id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_ul173921244154419"><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li133928447440">If the <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1610222659">Action</strong> is set to <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1130229524">Allow</strong>, traffic is allowed to access the cloud servers in the security group over specified ports.</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li1439264484414">If the <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1142394704416">Action</strong> is set to <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b13423164734419">Deny</strong>, traffic is denied to access the cloud servers in the security group over specified ports.</li></ul>
<td class="cellrowborder" valign="top" width="69.33%" headers="mcps1.3.2.2.8.3.2.4.1.2 "><div class="p" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p123921244154413">The value can be <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1522795213421">Allow</strong> or <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b922865264219">Deny</strong>.<ul id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_ul173921244154419"><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li133928447440">If the <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1659056719">Action</strong> is set to <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b2142647034">Allow</strong>, traffic is allowed to access the cloud servers in the security group over specified ports.</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li1439264484414">If the <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1142394704416">Action</strong> is set to <strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b13423164734419">Deny</strong>, traffic is denied to access the cloud servers in the security group over specified ports.</li></ul>
</div>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.2.8.3.2.4.1.3 "><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1239244454416">Allow</p>
@ -64,7 +64,7 @@
</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li4393184411443">All IP addresses<p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p4393114414444"><a name="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li4393184411443"></a><a name="en-us_topic_0000001865662329_li4393184411443"></a>0.0.0.0/0 represents all IPv4 addresses.</p>
<p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p43931244154411">::/0 represents all IPv6 addresses.</p>
</li></ul>
</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li439304412448"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b10231339172319">Security group</strong>: The source is from another security group. You can select a security group in the same region from the drop-down list. If there is instance A in security group A and instance B in security group B, and the inbound rule of security group A allows traffic from security group B, traffic is allowed from instance B to instance A.</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li0393194415446"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b386297917">IP address group</strong>: An IP address group is a collection of one or more IP addresses. You can select an available IP address group from the drop-down list. An IP address group can help you manage IP address ranges and IP addresses with same security requirements in a simpler way.</li></ul>
</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li439304412448"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b10231339172319">Security group</strong>: The source is from another security group. You can select a security group in the same region from the drop-down list. If there is instance A in security group A and instance B in security group B, and the inbound rule of security group A allows traffic from security group B, traffic is allowed from instance B to instance A.</li><li id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_li0393194415446"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1449691308">IP address group</strong>: An IP address group is a collection of one or more IP addresses. You can select an available IP address group from the drop-down list. An IP address group can help you manage IP address ranges and IP addresses with same security requirements in a simpler way.</li></ul>
</div>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.2.8.3.2.4.1.3 "><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p133931944134411">IP address</p>
@ -87,9 +87,9 @@
</li><li id="EN-US_TOPIC_0030878383__li9367915133218">Configure required parameters.<p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p161151454111115"><a name="EN-US_TOPIC_0030878383__li9367915133218"></a><a name="li9367915133218"></a>You can click <strong id="EN-US_TOPIC_0030878383__b4882431224550">+</strong> to add more outbound rules.</p>
<div class="fignone" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_fig11809848184019"><span class="figcap"><b>Figure 2 </b>Adding outbound rules</span><br><span><img id="EN-US_TOPIC_0030878383__image1150815492586" src="en-us_image_0000002385382577.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_table0614192319232" width="90%" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Outbound rule parameter description</caption><thead align="left"><tr id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_row19614623202312"><th align="left" class="cellrowborder" valign="top" width="12.55%" id="mcps1.3.2.2.11.3.2.4.1.1"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p361592319230"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1899306871">Parameter</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_table0614192319232" width="90%" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Outbound rule parameter description</caption><thead align="left"><tr id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_row19614623202312"><th align="left" class="cellrowborder" valign="top" width="12.55%" id="mcps1.3.2.2.11.3.2.4.1.1"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p361592319230"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b977522780">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="69.45%" id="mcps1.3.2.2.11.3.2.4.1.2"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1961514231232"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1089579997">Description</strong></p>
<th align="left" class="cellrowborder" valign="top" width="69.45%" id="mcps1.3.2.2.11.3.2.4.1.2"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1961514231232"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b1520922469">Description</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.2.11.3.2.4.1.3"><p id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_p1061552372311"><strong id="EN-US_TOPIC_0030878383__en-us_topic_0000001865662329_b78071625745">Example Value</strong></p>
</th>

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</div>
<div class="section" id="EN-US_TOPIC_0031107266__section16953246105518"><h4 class="sectiontitle">Prerequisites</h4><p id="EN-US_TOPIC_0031107266__p13966648155514">You have obtained the private key file (.pem file) which was generated during the ECS creation.</p>
</div>
<div class="section" id="EN-US_TOPIC_0031107266__section38475220193847"><h4 class="sectiontitle">Obtaining the Password Through the Management Console</h4><ol id="EN-US_TOPIC_0031107266__ol5405292620557"><li id="EN-US_TOPIC_0031107266__li584178495530">Obtain the private key file (.pem file) used when you created the <span id="EN-US_TOPIC_0031107266__text136800010221">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0031107266__li464234814566">Click <span><img id="EN-US_TOPIC_0031107266__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031107266__en-us_topic_0029320966_li40039532224047">Under <strong id="EN-US_TOPIC_0031107266__b1967518220919"><span id="EN-US_TOPIC_0031107266__text7675132211912">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031107266__b176754221695">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031107266__en-us_topic_0029320966_li24833369224047">On the <strong id="EN-US_TOPIC_0031107266__b577318918018">Elastic Cloud Server</strong> page, select the target <span id="EN-US_TOPIC_0031107266__text11584529221">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li46427097215215">In the <strong id="EN-US_TOPIC_0031107266__b1263753874224238">Operation</strong> column, click <strong id="EN-US_TOPIC_0031107266__b387248926224238">More</strong> and select <strong id="EN-US_TOPIC_0031107266__b879578791224238">Get Password</strong>.<div class="fignone" id="EN-US_TOPIC_0031107266__fig1599613332547"><span class="figcap"><b>Figure 1 </b>Get Password</span><br><span><img id="EN-US_TOPIC_0031107266__image66191150182317" src="en-us_image_0000002385408725.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="EN-US_TOPIC_0031107266__section38475220193847"><h4 class="sectiontitle">Obtaining the Password Through the Management Console</h4><ol id="EN-US_TOPIC_0031107266__ol5405292620557"><li id="EN-US_TOPIC_0031107266__li584178495530">Obtain the private key file (.pem file) used when you created the <span id="EN-US_TOPIC_0031107266__text136800010221">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0031107266__li464234814566">Click <span><img id="EN-US_TOPIC_0031107266__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031107266__en-us_topic_0029320966_li40039532224047">Under <strong id="EN-US_TOPIC_0031107266__b13423647112710"><span id="EN-US_TOPIC_0031107266__text1542394752712">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031107266__b154232470276">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031107266__en-us_topic_0029320966_li24833369224047">On the <strong id="EN-US_TOPIC_0031107266__b577318918018">Elastic Cloud Server</strong> page, select the target <span id="EN-US_TOPIC_0031107266__text11584529221">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li46427097215215">In the <strong id="EN-US_TOPIC_0031107266__b1263753874224238">Operation</strong> column, click <strong id="EN-US_TOPIC_0031107266__b387248926224238">More</strong> and select <strong id="EN-US_TOPIC_0031107266__b879578791224238">Get Password</strong>.<div class="fignone" id="EN-US_TOPIC_0031107266__fig1599613332547"><span class="figcap"><b>Figure 1 </b>Get Password</span><br><span><img id="EN-US_TOPIC_0031107266__image66191150182317" src="en-us_image_0000002385408725.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0031107266__li50525424215555">Use either of the following methods to obtain the password through the private key:<ul id="EN-US_TOPIC_0031107266__ul6527186921565"><li id="EN-US_TOPIC_0031107266__li1887355017131">Click <strong id="EN-US_TOPIC_0031107266__b16455111362215">Select File</strong> and upload the private key from a local directory.</li><li id="EN-US_TOPIC_0031107266__li42486460215639">Copy the content of the private key file and paste it into the text box.</li></ul>
</li><li id="EN-US_TOPIC_0031107266__li18672759215816">Click <strong id="EN-US_TOPIC_0031107266__b102668266317244">Get Password</strong> to obtain a random password.</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0031107266__section1118765310423"><h4 class="sectiontitle">Obtaining the Password Through APIs</h4><ol id="EN-US_TOPIC_0031107266__ol507546510433"><li id="EN-US_TOPIC_0031107266__li17213488101942">Obtain the private key file (.pem file) used when you created the <span id="EN-US_TOPIC_0031107266__text356411314017">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li1110886810299">Set up the API calling environment.</li><li id="EN-US_TOPIC_0031107266__li54866977184131">Call APIs. For details, see <a href="https://docs.otc.t-systems.com/api/ecs/en-us_topic_0020805967.html" target="_blank" rel="noopener noreferrer">API Usage Guidelines</a> in the <em id="EN-US_TOPIC_0031107266__i16311953154412">Elastic Cloud Server API Reference</em>.</li><li id="EN-US_TOPIC_0031107266__li5770130102852"><a name="EN-US_TOPIC_0031107266__li5770130102852"></a><a name="li5770130102852"></a>Obtain the ciphertext password.<p id="EN-US_TOPIC_0031107266__p44462590102854"><a name="EN-US_TOPIC_0031107266__li5770130102852"></a><a name="li5770130102852"></a>Call the password obtaining APIs to obtain the ciphertext password of the public key encrypted using RSA. The API URI is in the format "GET /v2/{<em id="EN-US_TOPIC_0031107266__i842352697152819">project_id</em>}/servers/{<em id="EN-US_TOPIC_0031107266__i842352697152825">server_id</em>}/os-server-password".</p>
<div class="section" id="EN-US_TOPIC_0031107266__section1118765310423"><h4 class="sectiontitle">Obtaining the Password Through APIs</h4><ol id="EN-US_TOPIC_0031107266__ol507546510433"><li id="EN-US_TOPIC_0031107266__li17213488101942">Obtain the private key file (.pem file) used when you created the <span id="EN-US_TOPIC_0031107266__text356411314017">ECS</span>.</li><li id="EN-US_TOPIC_0031107266__li1110886810299">Set up the API calling environment.</li><li id="EN-US_TOPIC_0031107266__li54866977184131">Call APIs. For details, see <a href="https://docs.otc.t-systems.com/api/ecs/en-us_topic_0020805967.html" target="_blank" rel="noopener noreferrer">API Usage Guidelines</a> in the <em id="EN-US_TOPIC_0031107266__i8578933183920">Elastic Cloud Server API Reference</em>.</li><li id="EN-US_TOPIC_0031107266__li5770130102852"><a name="EN-US_TOPIC_0031107266__li5770130102852"></a><a name="li5770130102852"></a>Obtain the ciphertext password.<p id="EN-US_TOPIC_0031107266__p840771218317"><a name="EN-US_TOPIC_0031107266__li5770130102852"></a><a name="li5770130102852"></a>Call the password obtaining APIs to obtain the ciphertext password of the public key encrypted using RSA.</p>
<p id="EN-US_TOPIC_0031107266__p1927281712310">The API URI is in the following format: GET /v2/{<em id="EN-US_TOPIC_0031107266__i7188162115407">project_id</em>}/servers/{<em id="EN-US_TOPIC_0031107266__i1518814215407">server_id</em>}/os-server-password.</p>
<div class="note" id="EN-US_TOPIC_0031107266__note58305696141012"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0031107266__p54989223141012">For details, see <a href="https://docs.otc.t-systems.com/elastic-cloud-server/api-ref/native_openstack_nova_apis/key_and_password_management/obtaining_the_password_for_logging_in_to_an_ecs.html#en-us-topic-0031176553" target="_blank" rel="noopener noreferrer">Obtaining the Password for Logging In to an ECS</a>.</p>
</div></div>
</li><li id="EN-US_TOPIC_0031107266__li20331687102654">Decrypt the ciphertext password.<p id="EN-US_TOPIC_0031107266__p28094918102655"><a name="EN-US_TOPIC_0031107266__li20331687102654"></a><a name="li20331687102654"></a>Use the private key file used when you created the ECS to decrypt the ciphertext password obtained in step <a href="#EN-US_TOPIC_0031107266__li5770130102852">4</a>.</p>

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<div class="caution" id="EN-US_TOPIC_0031107267__note174531194115"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0031107267__p193814564112">Once deleted, the password cannot be retrieved, so record the password before deleting it.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0031107267__section2644336121598"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0031107267__ol5405292620557"><li id="EN-US_TOPIC_0031107267__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0031107267__li464234814566">Click <span><img id="EN-US_TOPIC_0031107267__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031107267__en-us_topic_0029320966_li40039532224047">Under <strong id="EN-US_TOPIC_0031107267__b18775227121317"><span id="EN-US_TOPIC_0031107267__text97754272139">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031107267__b1775427111315">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031107267__en-us_topic_0029320966_li24833369224047">On the <strong id="EN-US_TOPIC_0031107267__b165659201067">Elastic Cloud Server</strong> page, select the target <span id="EN-US_TOPIC_0031107267__text1197718218227">ECS</span>.</li><li id="EN-US_TOPIC_0031107267__li46427097215215">In the <strong id="EN-US_TOPIC_0031107267__b84235270612174">Operation</strong> column, click <strong id="EN-US_TOPIC_0031107267__b84235270612177">More</strong> and select <strong id="EN-US_TOPIC_0031107267__b842352706121710">Delete Password</strong>.<p id="EN-US_TOPIC_0031107267__p9631509215432">The system displays a message, asking you whether you want to delete the password.</p>
<div class="section" id="EN-US_TOPIC_0031107267__section2644336121598"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0031107267__ol5405292620557"><li id="EN-US_TOPIC_0031107267__li1151341720102">Log in to the management console.</li><li id="EN-US_TOPIC_0031107267__li464234814566">Click <span><img id="EN-US_TOPIC_0031107267__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031107267__en-us_topic_0029320966_li40039532224047">Under <strong id="EN-US_TOPIC_0031107267__b166518502272"><span id="EN-US_TOPIC_0031107267__text36652050122718">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031107267__b6665350142710">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031107267__en-us_topic_0029320966_li24833369224047">On the <strong id="EN-US_TOPIC_0031107267__b165659201067">Elastic Cloud Server</strong> page, select the target <span id="EN-US_TOPIC_0031107267__text1197718218227">ECS</span>.</li><li id="EN-US_TOPIC_0031107267__li46427097215215">In the <strong id="EN-US_TOPIC_0031107267__b84235270612174">Operation</strong> column, click <strong id="EN-US_TOPIC_0031107267__b84235270612177">More</strong> and select <strong id="EN-US_TOPIC_0031107267__b842352706121710">Delete Password</strong>.<p id="EN-US_TOPIC_0031107267__p9631509215432">The system displays a message, asking you whether you want to delete the password.</p>
<div class="fignone" id="EN-US_TOPIC_0031107267__fig0151442145710"><span class="figcap"><b>Figure 1 </b>Delete Password</span><br><span><img id="EN-US_TOPIC_0031107267__image11206125782518" src="en-us_image_0000002351571222.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0031107267__li18672759215816">Click <strong id="EN-US_TOPIC_0031107267__b842352706145910">OK</strong> to delete the password.</li></ol>
</div>

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</li><li id="EN-US_TOPIC_0031523135__li19425937143519">If you plan to use a private image to change the OS, ensure that a private image is available. For details about how to create a private image, see <em id="EN-US_TOPIC_0031523135__i1166493117393">Image Management Service User Guide</em>.<ul id="EN-US_TOPIC_0031523135__ul16160101111503"><li id="EN-US_TOPIC_0031523135__li112128495415">If the image of a specified <span id="EN-US_TOPIC_0031523135__text98820428488">ECS</span> is required, make sure that a private image has been created using this <span id="EN-US_TOPIC_0031523135__text9883742124815">ECS</span>.</li><li id="EN-US_TOPIC_0031523135__li19120046204513">If a local image file is required, make sure that the image file has been imported to the cloud platform and registered as a private image.</li><li id="EN-US_TOPIC_0031523135__li1838258174613">If a private image from another region is required, make sure that the image has been copied.</li><li id="EN-US_TOPIC_0031523135__li19484544194814">If a private image from another user account is required, make sure that the image has been shared with you.</li></ul>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0031523135__section208284422018"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0031523135__ol6031768220119"><li id="EN-US_TOPIC_0031523135__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0031523135__li464234814566">Click <span><img id="EN-US_TOPIC_0031523135__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628"><a name="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628"></a><a name="en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628"></a>Under <strong id="EN-US_TOPIC_0031523135__b11236186164017"><span id="EN-US_TOPIC_0031523135__text6236864409">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031523135__b1323716634018">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031523135__li162972813478">Locate the row containing the target <span id="EN-US_TOPIC_0031523135__text85429311777">ECS</span> and choose <strong id="EN-US_TOPIC_0031523135__b654243115717">More</strong> &gt; <strong id="EN-US_TOPIC_0031523135__b554317314716">Manage Image/Backup</strong> &gt; <strong id="EN-US_TOPIC_0031523135__b20543133111716">Change OS</strong> in the <strong id="EN-US_TOPIC_0031523135__b354317311376">Operation</strong> column.<p id="EN-US_TOPIC_0031523135__p230152844712">Only stopped <span id="EN-US_TOPIC_0031523135__text1811919337108">ECS</span>s support OS change. If the <span id="EN-US_TOPIC_0031523135__text7164698613">ECS</span> is not stopped, stop it before proceeding with the change.</p>
<div class="section" id="EN-US_TOPIC_0031523135__section208284422018"><a name="EN-US_TOPIC_0031523135__section208284422018"></a><a name="section208284422018"></a><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0031523135__ol6031768220119"><li id="EN-US_TOPIC_0031523135__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0031523135__li464234814566">Click <span><img id="EN-US_TOPIC_0031523135__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628">Under <strong id="EN-US_TOPIC_0031523135__b631213452243"><span id="EN-US_TOPIC_0031523135__text10312194592414">Computing</span></strong>, click <strong id="EN-US_TOPIC_0031523135__b17312144532417">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0031523135__li162972813478">Locate the row containing the target <span id="EN-US_TOPIC_0031523135__text85429311777">ECS</span> and choose <strong id="EN-US_TOPIC_0031523135__b654243115717">More</strong> &gt; <strong id="EN-US_TOPIC_0031523135__b554317314716">Manage Image/Backup</strong> &gt; <strong id="EN-US_TOPIC_0031523135__b20543133111716">Change OS</strong> in the <strong id="EN-US_TOPIC_0031523135__b354317311376">Operation</strong> column.<p id="EN-US_TOPIC_0031523135__p230152844712">Only stopped <span id="EN-US_TOPIC_0031523135__text1811919337108">ECS</span>s support OS change. If the <span id="EN-US_TOPIC_0031523135__text7164698613">ECS</span> is not stopped, stop it before proceeding with the change.</p>
</li><li id="EN-US_TOPIC_0031523135__li359341520111">Select the target image.<p id="EN-US_TOPIC_0031523135__p4891784120112"><a name="EN-US_TOPIC_0031523135__li359341520111"></a><a name="li359341520111"></a>For details, see <a href="en-us_topic_0021831611.html">Creating an ECS</a>.</p>
<div class="fignone" id="EN-US_TOPIC_0031523135__fig61751138286"><span class="figcap"><b>Figure 1 </b>Changing an OS</span><br><span><img id="EN-US_TOPIC_0031523135__image10463142014217" src="en-us_image_0000002385192025.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0031523135__li8531832155310">(Optional) Select the <strong id="EN-US_TOPIC_0031523135__b1408122218304">Encrypted</strong> option to encrypt the system disk during OS change.<p id="EN-US_TOPIC_0031523135__p767712438280">To enable encryption, click <span class="uicontrol" id="EN-US_TOPIC_0031523135__en-us_topic_0163572589_en-us_topic_0144542112_uicontrol528614138616"><b>Create Xrole</b></span> to grant KMS access permissions to EVS. If you have the granting permission, grant KMS access permissions to EVS. If you do not have the granting permission, contact the user who has the Security Administrator permissions to grant KMS access permissions. For details, see <a href="en-us_topic_0047272493.html">Can All Users Use the Encryption Feature?</a></p>
@ -29,7 +29,7 @@
</div>
</li><li id="EN-US_TOPIC_0031523135__li5336143212240">Set <strong id="EN-US_TOPIC_0031523135__b4126152512816">Login Mode</strong>.<p id="EN-US_TOPIC_0031523135__p171933385113">You can set the login mode for the <span id="EN-US_TOPIC_0031523135__text1214370115219">ECS</span> whose OS is to be changed based on service requirements.</p>
<ul id="EN-US_TOPIC_0031523135__ul6826113465817"><li id="EN-US_TOPIC_0031523135__li38261934205811">If you select <strong id="EN-US_TOPIC_0031523135__b181414361513">Password</strong> for <strong id="EN-US_TOPIC_0031523135__b0111363153">Login Mode</strong>, you can use the original password or enter a new one.</li><li id="EN-US_TOPIC_0031523135__li39011742192716">If you select <strong id="EN-US_TOPIC_0031523135__b623916121191">Key pair</strong> for <strong id="EN-US_TOPIC_0031523135__b15239812794">Login Mode</strong>, select an available key pair from the drop-down list or create a key pair. For details, see <a href="en-us_topic_0000001278350057.html">(Recommended) Creating a Key Pair on the Management Console</a>.</li></ul>
</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li4798821517833">Click <strong id="EN-US_TOPIC_0031523135__b153798544917">OK</strong>.</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45992498111556"><a name="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45992498111556"></a><a name="en-us_topic_0031523135_en-us_topic_0024911405_li45992498111556"></a>On the <strong id="EN-US_TOPIC_0031523135__b20256959165614">Change OS</strong> page, confirm the settings and click <strong id="EN-US_TOPIC_0031523135__b182574594563">Submit</strong>.<p id="EN-US_TOPIC_0031523135__p4013850816820">After the application is submitted, the ECS status changes to <strong id="EN-US_TOPIC_0031523135__b84235270616717">Changing OS</strong>. When this status disappears, the OS change is complete.</p>
</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li4798821517833">Click <strong id="EN-US_TOPIC_0031523135__b153798544917">OK</strong>.</li><li id="EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45992498111556">On the <strong id="EN-US_TOPIC_0031523135__b20256959165614">Change OS</strong> page, confirm the settings and click <strong id="EN-US_TOPIC_0031523135__b182574594563">Submit</strong>.<p id="EN-US_TOPIC_0031523135__p4013850816820">After the application is submitted, the ECS status changes to <strong id="EN-US_TOPIC_0031523135__b84235270616717">Changing OS</strong>. When this status disappears, the OS change is complete.</p>
<div class="note" id="EN-US_TOPIC_0031523135__note1993244016842"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0031523135__p3492635716815">During the OS change process, a temporary <span id="EN-US_TOPIC_0031523135__text26231188142">ECS</span> is created. After the OS change is complete, this <span id="EN-US_TOPIC_0031523135__text1418210226147">ECS</span> will be automatically deleted.</p>
</div></div>
</li></ol>
@ -39,7 +39,7 @@
</li><li id="EN-US_TOPIC_0031523135__li54436398246">Mount the partition so that you can use the data disk.<p id="EN-US_TOPIC_0031523135__p59351323337"><a name="EN-US_TOPIC_0031523135__li54436398246"></a><a name="li54436398246"></a><strong id="EN-US_TOPIC_0031523135__b1785919239581">mount</strong> <em id="EN-US_TOPIC_0031523135__i7864172319584">Disk partition</em> <em id="EN-US_TOPIC_0031523135__i1386562311589">Device name</em></p>
</li><li id="EN-US_TOPIC_0031523135__li212413912617">Check the mount result.<p id="EN-US_TOPIC_0031523135__p11281039767"><a name="EN-US_TOPIC_0031523135__li212413912617"></a><a name="li212413912617"></a><strong id="EN-US_TOPIC_0031523135__b143744411567">df -TH</strong></p>
</li></ol>
</li><li id="EN-US_TOPIC_0031523135__li127064517245">If the OS change fails, perform steps <a href="#EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45082966143628">3</a> to <a href="#EN-US_TOPIC_0031523135__en-us_topic_0031523135_en-us_topic_0024911405_li45992498111556">10</a> again to retry the OS change.</li><li id="EN-US_TOPIC_0031523135__li207061356245">If the attempt still fails, contact customer service for manual recovery at the backend.</li></ul>
</li><li id="EN-US_TOPIC_0031523135__li127064517245">If the OS change fails, perform the operations described in <a href="#EN-US_TOPIC_0031523135__section208284422018">Procedure</a> again to retry the OS change.</li><li id="EN-US_TOPIC_0031523135__li207061356245">If the attempt still fails, contact customer service for manual recovery at the backend.</li></ul>
</div>
</div>
<div>

8
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@ -9,20 +9,20 @@
</li><li id="EN-US_TOPIC_0032980085__li890912415366"><a href="#EN-US_TOPIC_0032980085__section12553172594918">Removing an ECS from an ECS Group</a></li><li id="EN-US_TOPIC_0032980085__li262212451590"><a href="#EN-US_TOPIC_0032980085__section95601058404">Deleting an ECS Group</a></li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0032980085__section1464061364114"><a name="EN-US_TOPIC_0032980085__section1464061364114"></a><a name="section1464061364114"></a><h4 class="sectiontitle">Creating an ECS Group</h4><p id="EN-US_TOPIC_0032980085__p479295718598">Create an ECS group and select a policy for the group. This policy applies to all ECSs in the same group. ECS groups are independent of each other.</p>
<ol id="EN-US_TOPIC_0032980085__ol3711135973811"><li id="EN-US_TOPIC_0032980085__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li16711125916384">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li19711185903813">Under <strong id="EN-US_TOPIC_0032980085__b131310569376"><span id="EN-US_TOPIC_0032980085__text8313356143718">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b1231375615374">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li971125913386">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b1877381918409">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li471116594389">On the <strong id="EN-US_TOPIC_0032980085__b15701922124014">ECS Group</strong> page, click <strong id="EN-US_TOPIC_0032980085__b127021822114017">Create ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li20711859193820">Enter the name of the ECS group.</li><li id="EN-US_TOPIC_0032980085__li371215920386">Select a policy for the ECS group.</li><li id="EN-US_TOPIC_0032980085__li57122059163815">Click <strong id="EN-US_TOPIC_0032980085__b84235270611586">OK</strong>.</li></ol>
<ol id="EN-US_TOPIC_0032980085__ol3711135973811"><li id="EN-US_TOPIC_0032980085__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li16711125916384">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li19711185903813">Under <strong id="EN-US_TOPIC_0032980085__b473765419916"><span id="EN-US_TOPIC_0032980085__text473655412913">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b12737205419911">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li971125913386">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b1877381918409">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li471116594389">On the <strong id="EN-US_TOPIC_0032980085__b15701922124014">ECS Group</strong> page, click <strong id="EN-US_TOPIC_0032980085__b127021822114017">Create ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li20711859193820">Enter the name of the ECS group.</li><li id="EN-US_TOPIC_0032980085__li371215920386">Select a policy for the ECS group.</li><li id="EN-US_TOPIC_0032980085__li57122059163815">Click <strong id="EN-US_TOPIC_0032980085__b84235270611586">OK</strong>.</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0032980085__section1447818554481"><a name="EN-US_TOPIC_0032980085__section1447818554481"></a><a name="section1447818554481"></a><h4 class="sectiontitle">Adding an ECS to an ECS Group</h4><p id="EN-US_TOPIC_0032980085__p118166315312">To improve service reliability, you can add ECSs to an ECS group so that these ECSs in this group can run on different hosts.</p>
<div class="note" id="EN-US_TOPIC_0032980085__note167121625165710"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0032980085__ul1689344911229"><li id="EN-US_TOPIC_0032980085__li189314912225">After an ECS is added to an ECS group, the system reallocates a host to run this ECS to ensure that ECSs in this group run on different hosts. When you attempt to restart the ECS, the startup may fail due to insufficient resources. In such a case, remove the ECS from the ECS group and try to restart the ECS again.</li><li id="EN-US_TOPIC_0032980085__li93391615992">ECSs with local disks can be added to an ECS group only during the creation process. Once created, they cannot be added to any ECS groups.</li><li id="EN-US_TOPIC_0032980085__li14180845145114">ECSs that have local disks, GPU cards, or FPGA cards attached can be added to an ECS group only during the creation process. Once created, they cannot be added to any ECS groups.</li></ul>
</div></div>
<ol id="EN-US_TOPIC_0032980085__ol5558180115013"><li id="EN-US_TOPIC_0032980085__li1330219278117">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li1795581810188">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li2558402503">Under <strong id="EN-US_TOPIC_0032980085__b977515614388"><span id="EN-US_TOPIC_0032980085__text1477512613810">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b17760663817">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li165586013504">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b578718346408">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li35741305503">Locate the row that contains the target ECS group and click <strong id="EN-US_TOPIC_0032980085__b942974514573">Add ECS</strong> in the <strong id="EN-US_TOPIC_0032980085__b17323547205718">Operation</strong> column.</li><li id="EN-US_TOPIC_0032980085__li13574160155011">On the <strong id="EN-US_TOPIC_0032980085__b11741195413576">Add ECS</strong> page, select an ECS to be added.</li><li id="EN-US_TOPIC_0032980085__li45746018500">Click <strong id="EN-US_TOPIC_0032980085__b13492221205812">OK</strong>. The ECS is added to the ECS group.</li></ol>
<ol id="EN-US_TOPIC_0032980085__ol5558180115013"><li id="EN-US_TOPIC_0032980085__li1330219278117">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li1795581810188">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li2558402503">Under <strong id="EN-US_TOPIC_0032980085__b143751957497"><span id="EN-US_TOPIC_0032980085__text437518571895">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b437515714912">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li165586013504">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b578718346408">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li35741305503">Locate the row that contains the target ECS group and click <strong id="EN-US_TOPIC_0032980085__b942974514573">Add ECS</strong> in the <strong id="EN-US_TOPIC_0032980085__b17323547205718">Operation</strong> column.</li><li id="EN-US_TOPIC_0032980085__li13574160155011">On the <strong id="EN-US_TOPIC_0032980085__b11741195413576">Add ECS</strong> page, select an ECS to be added.</li><li id="EN-US_TOPIC_0032980085__li45746018500">Click <strong id="EN-US_TOPIC_0032980085__b13492221205812">OK</strong>. The ECS is added to the ECS group.</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0032980085__section12553172594918"><a name="EN-US_TOPIC_0032980085__section12553172594918"></a><a name="section12553172594918"></a><h4 class="sectiontitle">Removing an ECS from an ECS Group</h4><p id="EN-US_TOPIC_0032980085__p12584124558">After an ECS is removed from an ECS group, the ECS does not comply with the ECS group policy anymore.</p>
<ol id="EN-US_TOPIC_0032980085__ol5435141535317"><li id="EN-US_TOPIC_0032980085__li10356114119118">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li188094225182">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_2" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li3435315185314">Under <strong id="EN-US_TOPIC_0032980085__b138197125388"><span id="EN-US_TOPIC_0032980085__text781914128386">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b1981911127386">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li124358151534">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b1412053914011">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li043519155531">Expand the ECS group information and view the ECSs in the ECS group.</li><li id="EN-US_TOPIC_0032980085__li4717194710430">Locate the ECS to be removed and click <strong id="EN-US_TOPIC_0032980085__b20705455125917">Remove</strong> in the <strong id="EN-US_TOPIC_0032980085__b89211132204">Operation</strong> column.<p id="EN-US_TOPIC_0032980085__p187931616212">Alternatively, select multiple <span id="EN-US_TOPIC_0032980085__text1978194111218">ECS</span>s to be removed and click <strong id="EN-US_TOPIC_0032980085__b1412125274415">Remove</strong> above the list.</p>
<ol id="EN-US_TOPIC_0032980085__ol5435141535317"><li id="EN-US_TOPIC_0032980085__li10356114119118">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li188094225182">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_2" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li3435315185314">Under <strong id="EN-US_TOPIC_0032980085__b13412195915915"><span id="EN-US_TOPIC_0032980085__text184128595919">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b541220591796">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li124358151534">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b1412053914011">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li043519155531">Expand the ECS group information and view the ECSs in the ECS group.</li><li id="EN-US_TOPIC_0032980085__li4717194710430">Locate the ECS to be removed and click <strong id="EN-US_TOPIC_0032980085__b20705455125917">Remove</strong> in the <strong id="EN-US_TOPIC_0032980085__b89211132204">Operation</strong> column.<p id="EN-US_TOPIC_0032980085__p187931616212">Alternatively, select multiple <span id="EN-US_TOPIC_0032980085__text1978194111218">ECS</span>s to be removed and click <strong id="EN-US_TOPIC_0032980085__b1412125274415">Remove</strong> above the list.</p>
</li><li id="EN-US_TOPIC_0032980085__li11165519144416">In the displayed dialog box, click <strong id="EN-US_TOPIC_0032980085__b4137438194120">OK</strong>.<p id="EN-US_TOPIC_0032980085__p12164020104412">The ECS is removed from the ECS group.</p>
</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0032980085__section95601058404"><a name="EN-US_TOPIC_0032980085__section95601058404"></a><a name="section95601058404"></a><h4 class="sectiontitle">Deleting an ECS Group</h4><p id="EN-US_TOPIC_0032980085__p85851295405">After an ECS group is deleted, the policy does not apply to the ECSs in the ECS group anymore.</p>
<ol id="EN-US_TOPIC_0032980085__ol21954523579"><li id="EN-US_TOPIC_0032980085__li152116583118">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li19210826101818">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_3" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li121951527571">Under <strong id="EN-US_TOPIC_0032980085__b26463319386"><span id="EN-US_TOPIC_0032980085__text3649334386">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b765193333811">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li1619575214579">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b5934154216405">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li16195452115713">Locate the ECS group to be deleted and click <strong id="EN-US_TOPIC_0032980085__b4971154618218">Delete</strong> in the <strong id="EN-US_TOPIC_0032980085__b119711446721">Operation</strong> column.</li><li id="EN-US_TOPIC_0032980085__li219519527573">In the displayed dialog box, click <strong id="EN-US_TOPIC_0032980085__b391943893813">OK</strong>.</li></ol>
<ol id="EN-US_TOPIC_0032980085__ol21954523579"><li id="EN-US_TOPIC_0032980085__li152116583118">Log in to the management console.</li><li id="EN-US_TOPIC_0032980085__li19210826101818">Click <span><img id="EN-US_TOPIC_0032980085__en-us_topic_0000001825604541_image9499446838_3" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0032980085__li121951527571">Under <strong id="EN-US_TOPIC_0032980085__b144451515103"><span id="EN-US_TOPIC_0032980085__text34457111107">Computing</span></strong>, click <strong id="EN-US_TOPIC_0032980085__b944571101018">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0032980085__li1619575214579">In the navigation pane on the left, choose <strong id="EN-US_TOPIC_0032980085__b5934154216405">ECS Group</strong>.</li><li id="EN-US_TOPIC_0032980085__li16195452115713">Locate the ECS group to be deleted and click <strong id="EN-US_TOPIC_0032980085__b4971154618218">Delete</strong> in the <strong id="EN-US_TOPIC_0032980085__b119711446721">Operation</strong> column.</li><li id="EN-US_TOPIC_0032980085__li219519527573">In the displayed dialog box, click <strong id="EN-US_TOPIC_0032980085__b391943893813">OK</strong>.</li></ol>
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<a name="EN-US_TOPIC_0035550301"></a><a name="EN-US_TOPIC_0035550301"></a>
<h1 class="topictitle1">Memory-optimized ECSs</h1>
<div id="body1471253099740"><div class="section" id="EN-US_TOPIC_0035550301__section25374905172644"><h4 class="sectiontitle">Overview</h4><ul id="EN-US_TOPIC_0035550301__ul1315174813178"><li id="EN-US_TOPIC_0035550301__li1047713263308">M9 <span id="EN-US_TOPIC_0035550301__text10477162616304">ECS</span>s use the sixth-generation Intel&reg; Xeon&reg; Scalable processors and KVM virtualization to provide enhanced compute, network, and security performance to fulfill the high-performance and large-memory requirements.</li><li id="EN-US_TOPIC_0035550301__li481315129107">M7n ECSs use the third-generation Intel&reg; Xeon&reg; Scalable processors to provide enhanced compute, security, and stability. Each M7n ECS can have a maximum number of 96 vCPUs and a memory speed of 3,200 MHz, and provide a secure and trusted cloud environment for memory-intensive compute applications.</li><li id="EN-US_TOPIC_0035550301__li1297251416311">M4 ECSs use the second-generation Intel&reg; Xeon&reg; Scalable processors with technologies optimized to offer powerful and stable compute performance. Using 25GE high-speed intelligent NICs, M4 ECSs provide a maximum memory size of 512 GiB based on DDR4 for memory-intensive applications with high requirements on network bandwidth and PPS.</li><li id="EN-US_TOPIC_0035550301__li12151948171720">M3 ECSs are developed based on the KVM virtualization platform and designed for processing large-scale data sets in memory. They use Intel&reg; Xeon&reg; Scalable processors, network acceleration engines, and DPDK rapid packet processing to provide higher network performance and up to 512 GiB of DDR4 memory for memory-intensive compute applications.</li></ul>
<div id="body1471253099740"><div class="section" id="EN-US_TOPIC_0035550301__section25374905172644"><h4 class="sectiontitle">Overview</h4><ul id="EN-US_TOPIC_0035550301__ul1315174813178"><li id="EN-US_TOPIC_0035550301__li1047713263308">M9 <span id="EN-US_TOPIC_0035550301__text10477162616304">ECS</span>s use the sixth-generation Intel&reg; Xeon&reg; Scalable processors and KVM virtualization to provide enhanced compute, network, and security performance to fulfill the high-performance and large-memory requirements.</li><li id="EN-US_TOPIC_0035550301__li481315129107">M7n ECSs use the third-generation Intel&reg; Xeon&reg; Scalable processors to provide enhanced performance, security, and stability. An M7n ECS can have up to 96 vCPUs and 3,200 MHz memory frequency. It provides a secure and trusted cloud environment and is suitable for memory-intensive compute applications.</li><li id="EN-US_TOPIC_0035550301__li1297251416311">M4 ECSs use the second-generation Intel&reg; Xeon&reg; Scalable processors with technologies optimized to offer powerful and stable compute performance. Using 25GE high-speed intelligent NICs, M4 ECSs provide a maximum memory size of 512 GiB based on DDR4 for memory-intensive applications with high requirements on network bandwidth and PPS.</li><li id="EN-US_TOPIC_0035550301__li12151948171720">M3 ECSs are built on the KVM virtualization platform and designed for processing large-scale datasets in memory. They use Intel&reg; Xeon&reg; Scalable processors, network acceleration engines, and DPDK rapid packet processing to provide higher network performance and up to 512 GiB of DDR4 memory for memory-intensive compute applications.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0035550301__section83746578616"><h4 class="sectiontitle">Specifications</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0035550301__table1513911519397" frame="border" border="1" rules="all"><caption><b>Table 1 </b>M9 <span id="EN-US_TOPIC_0035550301__text293793014">ECS</span> specifications</caption><thead align="left"><tr id="EN-US_TOPIC_0035550301__row4139415113910"><th align="left" class="cellrowborder" valign="top" width="10.980729895575411%" id="mcps1.3.2.2.2.12.1.1"><p id="EN-US_TOPIC_0035550301__p12139515203919">Flavor</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0035550301__table1513911519397" frame="border" border="1" rules="all"><caption><b>Table 1 </b>M9 <span id="EN-US_TOPIC_0035550301__text1844137242">ECS</span> specifications</caption><thead align="left"><tr id="EN-US_TOPIC_0035550301__row4139415113910"><th align="left" class="cellrowborder" valign="top" width="10.980729895575411%" id="mcps1.3.2.2.2.12.1.1"><p id="EN-US_TOPIC_0035550301__p12139515203919">Flavor</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="7.148239853590269%" id="mcps1.3.2.2.2.12.1.2"><p id="EN-US_TOPIC_0035550301__p1913914156399">vCPUs</p>
</th>
@ -165,7 +165,7 @@
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.2 "><p id="EN-US_TOPIC_0035550301__p12141191513913">128</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.3 "><p id="EN-US_TOPIC_0035550301__p101415151393">1024</p>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.3 "><p id="EN-US_TOPIC_0035550301__p101415151393">1,024</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.4 "><p id="EN-US_TOPIC_0035550301__p71416156394">100/80</p>
</td>
@ -186,7 +186,7 @@
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.2 "><p id="EN-US_TOPIC_0035550301__p1614221543919">192</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.3 "><p id="EN-US_TOPIC_0035550301__p2142141511395">1504</p>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.3 "><p id="EN-US_TOPIC_0035550301__p2142141511395">1,504</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.12.1.4 "><p id="EN-US_TOPIC_0035550301__p11421115153919">120/102</p>
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<h1 class="topictitle1">Viewing the ECS Creation Status</h1>
<div id="body1475916349625"><div class="section" id="EN-US_TOPIC_0039588795__section52267161284"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0039588795__p192271016152813">After submitting the request for creating an <span id="EN-US_TOPIC_0039588795__text67111012253">ECS</span>, you can view the creation status. This section describes how to view the creation status of an <span id="EN-US_TOPIC_0039588795__text174152252512">ECS</span>.</p>
</div>
<div class="section" id="EN-US_TOPIC_0039588795__section40936232171845"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0039588795__ol1607973117228"><li id="EN-US_TOPIC_0039588795__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0039588795__li464234814566">Click <span><img id="EN-US_TOPIC_0039588795__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0039588795__li1859019014179">Under <strong id="EN-US_TOPIC_0039588795__b138881188273"><span id="EN-US_TOPIC_0039588795__text1275161811259">Computing</span></strong>, select <strong id="EN-US_TOPIC_0039588795__b11888148142715">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0039588795__li8248795172237">After creating an ECS, view the creation status above the ECS list beside the common operations (<strong id="EN-US_TOPIC_0039588795__b842352706224353">Start</strong>, <strong id="EN-US_TOPIC_0039588795__b842352706224359">Stop</strong>, <strong id="EN-US_TOPIC_0039588795__b842352706224412">Restart</strong>, and <strong id="EN-US_TOPIC_0039588795__b1256162714514">Delete</strong>).<div class="fignone" id="EN-US_TOPIC_0039588795__fig95001618173416"><span class="figcap"><b>Figure 1 </b>ECS creation status</span><br><span><img id="EN-US_TOPIC_0039588795__image750151803413" src="en-us_image_0000001705420301.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0039588795__li5737160017537">Click the number displayed above <strong id="EN-US_TOPIC_0039588795__b842352706193120">Creating</strong> and view task details.<div class="note" id="EN-US_TOPIC_0039588795__note757395218525"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0039588795__ul8917181844517"><li id="EN-US_TOPIC_0039588795__li124091521144514">An ECS that is being created is in one of the following states:<ul id="EN-US_TOPIC_0039588795__ul71264208715"><li id="EN-US_TOPIC_0039588795__li1412652020718"><strong id="EN-US_TOPIC_0039588795__b842352706171726">Creating</strong>: The ECS is being created.</li><li id="EN-US_TOPIC_0039588795__li62730432364"><strong id="EN-US_TOPIC_0039588795__b247618988">Faulty</strong>: Creating the ECS failed. For a failed task, the system rolls back the task and displays an error code, for example, <strong id="EN-US_TOPIC_0039588795__b138174932913">Ecs.0013 Insufficient EIP quota</strong>.</li><li id="EN-US_TOPIC_0039588795__li11517121613158"><strong id="EN-US_TOPIC_0039588795__b89645686">Running</strong>: The request of creating the ECS has been processed, and the ECS is running properly. An ECS in this state can provide services for you.<p id="EN-US_TOPIC_0039588795__p15171216151514">See <a href="en-us_topic_0032398121.html">How Do I Handle Error Messages Displayed on the Management Console?</a> for troubleshooting.</p>
<div class="section" id="EN-US_TOPIC_0039588795__section40936232171845"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0039588795__ol1607973117228"><li id="EN-US_TOPIC_0039588795__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0039588795__li464234814566">Click <span><img id="EN-US_TOPIC_0039588795__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0039588795__li1859019014179">Under <strong id="EN-US_TOPIC_0039588795__b138881188273"><span id="EN-US_TOPIC_0039588795__text1275161811259">Computing</span></strong>, click <strong id="EN-US_TOPIC_0039588795__b11888148142715">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0039588795__li8248795172237">After creating an ECS, view the creation status above the ECS list beside the common operations (<strong id="EN-US_TOPIC_0039588795__b842352706224353">Start</strong>, <strong id="EN-US_TOPIC_0039588795__b842352706224359">Stop</strong>, <strong id="EN-US_TOPIC_0039588795__b842352706224412">Restart</strong>, and <strong id="EN-US_TOPIC_0039588795__b1256162714514">Delete</strong>).<div class="fignone" id="EN-US_TOPIC_0039588795__fig95001618173416"><span class="figcap"><b>Figure 1 </b>ECS creation status</span><br><span><img id="EN-US_TOPIC_0039588795__image750151803413" src="en-us_image_0000001705420301.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0039588795__li5737160017537">Click the number displayed above <strong id="EN-US_TOPIC_0039588795__b842352706193120">Creating</strong> and view task details.<div class="note" id="EN-US_TOPIC_0039588795__note757395218525"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0039588795__ul8917181844517"><li id="EN-US_TOPIC_0039588795__li124091521144514">An ECS that is being created is in one of the following states:<ul id="EN-US_TOPIC_0039588795__ul71264208715"><li id="EN-US_TOPIC_0039588795__li1412652020718"><strong id="EN-US_TOPIC_0039588795__b842352706171726">Creating</strong>: The ECS is being created.</li><li id="EN-US_TOPIC_0039588795__li62730432364"><strong id="EN-US_TOPIC_0039588795__b1084016947">Faulty</strong>: Creating the ECS failed. For a failed task, the system rolls back the task and displays an error code, for example, <strong id="EN-US_TOPIC_0039588795__b138174932913">Ecs.0013 Insufficient EIP quota</strong>.</li><li id="EN-US_TOPIC_0039588795__li11517121613158"><strong id="EN-US_TOPIC_0039588795__b1661697571">Running</strong>: The request of creating the ECS has been processed, and the ECS is running properly. An ECS in this state can provide services for you.<p id="EN-US_TOPIC_0039588795__p15171216151514">See <a href="en-us_topic_0032398121.html">How Do I Handle Error Messages Displayed on the Management Console?</a> for troubleshooting.</p>
</li></ul>
</li><li id="EN-US_TOPIC_0039588795__li16917201819452">If you find that the task status area shows an ECS creation failure but the ECS has been created successfully and displayed in the ECS list, see <a href="en-us_topic_0039524582.html">Why Does the Failures Area Show an ECS Creation Failure But the ECS List Displays the Created ECS?</a></li></ul>
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</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0041169567__row674519426375"><td class="cellrowborder" valign="top" width="18.970000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041169567__p4746204233712">2026-03-02</p>
<tbody><tr id="EN-US_TOPIC_0041169567__row122921831164313"><td class="cellrowborder" valign="top" width="18.970000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041169567__p16292631144317">2026-04-08</p>
</td>
<td class="cellrowborder" valign="top" width="81.03%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041169567__p1192211433432">Added the following content:</p>
<p id="EN-US_TOPIC_0041169567__p11922124317434"><a href="en-us_topic_0000001469584572.html">Configuring Secure Boot for an ECS</a></p>
</td>
</tr>
<tr id="EN-US_TOPIC_0041169567__row674519426375"><td class="cellrowborder" valign="top" width="18.970000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041169567__p4746204233712">2026-03-02</p>
</td>
<td class="cellrowborder" valign="top" width="81.03%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041169567__p11679158143710">Modified the following content:</p>
<ul id="EN-US_TOPIC_0041169567__ul167419123817"><li id="EN-US_TOPIC_0041169567__li16741131123811">Added x1.2xlarge.2, x1.2xlarge.3, and x1.2xlarge.4 flavors in <a href="en-us_topic_0035470101.html">General-Purpose ECSs</a>.</li><li id="EN-US_TOPIC_0041169567__li5879339163817">Added x1e.2xlarge.2, x1e.2xlarge.3, and x1e.2xlarge.4 flavors in <a href="en-us_topic_0091224748.html">Dedicated General-Purpose ECSs</a>.</li></ul>

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<a name="EN-US_TOPIC_0048642616"></a><a name="EN-US_TOPIC_0048642616"></a>
<h1 class="topictitle1">Cloud-Init</h1>
<div id="body1487147188799"><p id="EN-US_TOPIC_0048642616__p24907765162841">Cloud-Init is an open-source cloud initialization program, which initializes some of the customized configurations of a newly created <span id="EN-US_TOPIC_0048642616__text169521139133911">ECS</span>, such as the hostname, key pair, and user data.</p>
<p id="EN-US_TOPIC_0048642616__p28807954171256">All standard (Standard_xxx) and enterprise (Enterprise_xxx) images support Cloud-Init. Only certain community images (Community_xxx) do not support it.</p>
<p id="EN-US_TOPIC_0048642616__p61388894444">Using Cloud-Init to initialize your <span id="EN-US_TOPIC_0048642616__text995012410423">ECS</span>s will affect your <span id="EN-US_TOPIC_0048642616__text823920531281">ECS</span>, IMS, and AS services.</p>
<h1 class="topictitle1">Cloud-Init/Cloudbase-Init</h1>
<div id="body1487147188799"><p id="EN-US_TOPIC_0048642616__p24907765162841">Cloud-Init or Cloudbase-Init is an open-source cloud program that allows you to configure specific custom details of newly created <span id="EN-US_TOPIC_0048642616__text169521139133911">ECS</span>s (such as the hostname, key pair, and user data) during initialization.</p>
<p id="EN-US_TOPIC_0048642616__p28807954171256">All standard (Standard_xxx) and enterprise (Enterprise_xxx) images support Cloud-Init or Cloudbase-Init. Only certain community images (Community_xxx) do not support it.</p>
<p id="EN-US_TOPIC_0048642616__p61388894444">Using Cloud-Init or Cloudbase-Init to initialize your <span id="EN-US_TOPIC_0048642616__text995012410423">ECS</span>s will affect the use of your <span id="EN-US_TOPIC_0048642616__text1043111716422">ECS</span>, IMS, and AS services.</p>
<div class="section" id="EN-US_TOPIC_0048642616__section1150469610136"><h4 class="sectiontitle">Impact on IMS</h4><div class="p" id="EN-US_TOPIC_0048642616__p19778043173734">To ensure that <span id="EN-US_TOPIC_0048642616__text988919911421">ECS</span>s that are created using a private image support custom configurations, you must install Cloud-Init or Cloudbase-Init on the <span id="EN-US_TOPIC_0048642616__text2526249418">ECS</span>s before using them to create private images.<ul id="EN-US_TOPIC_0048642616__ul46952306173918"><li id="EN-US_TOPIC_0048642616__li36111246173918">For Windows OSs, download and install Cloudbase-Init.</li><li id="EN-US_TOPIC_0048642616__li31598379173918">For Linux OSs, download and install Cloud-Init.</li></ul>
</div>
<p id="EN-US_TOPIC_0048642616__p9773181454916">Once installed in an image, Cloud-Init or Cloudbase-Init automatically configures initial attributes for the <span id="EN-US_TOPIC_0048642616__text1661391412429">ECS</span>s created using this image.</p>
<p id="EN-US_TOPIC_0048642616__p9773181454916">Once installed in an image, Cloud-Init or Cloudbase-Init will automatically configure initial attributes for the <span id="EN-US_TOPIC_0048642616__text1661391412429">ECS</span>s when they are created using this image.</p>
<p id="EN-US_TOPIC_0048642616__p23919191171848">For more information, see <em id="EN-US_TOPIC_0048642616__i8423526979632">Image Management Service User Guide</em>.</p>
</div>
<div class="section" id="EN-US_TOPIC_0048642616__section2746706105950"><h4 class="sectiontitle">Impact on <span id="EN-US_TOPIC_0048642616__text1789415428342">ECS</span></h4><ul id="EN-US_TOPIC_0048642616__ul2000904310113"><li id="EN-US_TOPIC_0048642616__li4158057911579">When creating an <span id="EN-US_TOPIC_0048642616__text128818191429">ECS</span>, if the selected image supports Cloud-Init, you can use the <strong id="EN-US_TOPIC_0048642616__b0450143011233">User Data</strong> function to specify custom configuration, such as <span id="EN-US_TOPIC_0048642616__text12574123817301">ECS</span> login password to the <span id="EN-US_TOPIC_0048642616__text10228125710911">ECS</span>. Such custom settings will take effect upon <span id="EN-US_TOPIC_0048642616__text1435771541017">ECS</span> initialization. For details, see <a href="en-us_topic_0032380449.html">Injecting User Data</a>.</li><li id="EN-US_TOPIC_0048642616__li4924709610430">If Cloud-Init is supported, ECSs do not support password authentication anymore. All newly created ECSs use key pair authentication. This change will influence your ECS logins. For details, see the following sections:<ul id="EN-US_TOPIC_0048642616__ul19415265103937"><li id="EN-US_TOPIC_0048642616__li42939148103759"><a href="en-us_topic_0013771089.html">Login Overview (Linux)</a></li><li id="EN-US_TOPIC_0048642616__li24750406103813"><a href="en-us_topic_0037633087.html">What Is the Cloudbase-Init Account in Windows ECSs Used for?</a></li><li id="EN-US_TOPIC_0048642616__li61757858104056"><a href="en-us_topic_0031734664.html">Why Does the Login to My Linux ECS Using a Key File Fail?</a></li><li id="EN-US_TOPIC_0048642616__li12097450103839"><a href="en-us_topic_0031736846.html">Why Does the System Display a Message Indicating that the Password for Logging In to an ECS Cannot Be Obtained?</a></li></ul>
</li><li id="EN-US_TOPIC_0048642616__li25296237101910">If Cloud-Init is supported, you can view and use metadata to configure and manage running <span id="EN-US_TOPIC_0048642616__text14752153254217">ECS</span>s. For details, see <a href="en-us_topic_0042400609.html">Obtaining ECS Details Using Metadata</a>.</li></ul>
<div class="section" id="EN-US_TOPIC_0048642616__section2746706105950"><h4 class="sectiontitle">Impact on <span id="EN-US_TOPIC_0048642616__text1789415428342">ECS</span></h4><ul id="EN-US_TOPIC_0048642616__ul2000904310113"><li id="EN-US_TOPIC_0048642616__li4158057911579">When creating an <span id="EN-US_TOPIC_0048642616__text14978748191915">ECS</span>, if the selected image supports Cloud-Init or Cloudbase-Init, you can inject custom information (such as the <span id="EN-US_TOPIC_0048642616__text1978104811193">ECS</span> login password) during the initialization. For details, see <a href="en-us_topic_0032380449.html">Injecting User Data</a>.</li><li id="EN-US_TOPIC_0048642616__li4924709610430">After Cloud-Init is supported, ECSs do not support password authentication anymore. All newly created ECSs use key pair authentication. This change will affect your login to ECSs. For details, see the following sections:<ul id="EN-US_TOPIC_0048642616__ul19415265103937"><li id="EN-US_TOPIC_0048642616__li42939148103759"><a href="en-us_topic_0013771089.html">Login Overview (Linux)</a></li><li id="EN-US_TOPIC_0048642616__li24750406103813"><a href="en-us_topic_0037633087.html">What Is the Cloudbase-Init Account in Windows ECSs Used for?</a></li><li id="EN-US_TOPIC_0048642616__li61757858104056"><a href="en-us_topic_0031734664.html">Why Does the Login to My Linux ECS Using a Key File Fail?</a></li><li id="EN-US_TOPIC_0048642616__li12097450103839"><a href="en-us_topic_0031736846.html">Why Does the System Display a Message Indicating that the Password for Logging In to an ECS Cannot Be Obtained?</a></li></ul>
</li><li id="EN-US_TOPIC_0048642616__li25296237101910">After Cloud-Init or Cloudbase-Init is supported, you can view and use metadata to configure and manage running <span id="EN-US_TOPIC_0048642616__text33634376424">ECS</span>s. For details, see <a href="en-us_topic_0042400609.html">Obtaining ECS Details Using Metadata</a>.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0048642616__section4202207210118"><h4 class="sectiontitle">Impact on AS</h4><ul id="EN-US_TOPIC_0048642616__ul11675179111444"><li id="EN-US_TOPIC_0048642616__li17822332111444">When creating an AS configuration, you can use the <strong id="EN-US_TOPIC_0048642616__b7901175110233">User Data</strong> function to specify <span id="EN-US_TOPIC_0048642616__text2732946174214">ECS</span> configurations for initialization. If the AS configuration has taken effect in an AS group, the <span id="EN-US_TOPIC_0048642616__text11779154943119">ECS</span>s newly created in the AS group will automatically initialize their configurations based on the specified <span id="EN-US_TOPIC_0048642616__text5281103441117">ECS</span> configurations.</li><li id="EN-US_TOPIC_0048642616__li27735704111447">For an existing AS configuration, if its private image does not have Cloud-Init or Cloudbase-Init installed, the login mode of the <span id="EN-US_TOPIC_0048642616__text498535803212">ECS</span>s created in the AS group where the AS configuration takes effect may fail to take effect.<p id="EN-US_TOPIC_0048642616__p1760013719529">To resolve this issue, see "How Does Cloud-Init Affect the AS Service?" in <em id="EN-US_TOPIC_0048642616__i1500578943">Auto Scaling User Guide</em>.</p>
<div class="section" id="EN-US_TOPIC_0048642616__section4202207210118"><h4 class="sectiontitle">Impact on AS</h4><ul id="EN-US_TOPIC_0048642616__ul11675179111444"><li id="EN-US_TOPIC_0048642616__li17822332111444">When creating an AS configuration, you can use the <strong id="EN-US_TOPIC_0048642616__b7901175110233">User Data</strong> function to specify <span id="EN-US_TOPIC_0048642616__text2732946174214">ECS</span> configurations for initialization. If the AS configuration has taken effect in an AS group, the <span id="EN-US_TOPIC_0048642616__text11779154943119">ECS</span>s newly created in the AS group will automatically initialize their configurations based on the specified <span id="EN-US_TOPIC_0048642616__text5281103441117">ECS</span> configurations.</li><li id="EN-US_TOPIC_0048642616__li27735704111447">For an existing AS configuration, if its private image does not have Cloud-Init or Cloudbase-Init installed, the login mode of the <span id="EN-US_TOPIC_0048642616__text498535803212">ECS</span>s created in the AS group where the AS configuration takes effect may fail to take effect.<p id="EN-US_TOPIC_0048642616__p1760013719529">To resolve this issue, see "How Does Cloud-Init Affect the AS Service?" in <em id="EN-US_TOPIC_0048642616__i1000928909">Auto Scaling User Guide</em>.</p>
</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0048642616__section44995720162019"><h4 class="sectiontitle">Notes</h4><ul id="EN-US_TOPIC_0048642616__ul27309930162147"><li id="EN-US_TOPIC_0048642616__li57792420162147">When using Cloud-Init, enable DHCP in the VPC which the <span id="EN-US_TOPIC_0048642616__text1781819502422">ECS</span> belongs to.</li><li id="EN-US_TOPIC_0048642616__li3134774162149">When using Cloud-Init, ensure that security group rules for the outbound direction meet the following requirements:<ul id="EN-US_TOPIC_0048642616__ul58881557162226"><li id="EN-US_TOPIC_0048642616__en-us_topic_0042400609_li4991456153157">Protocol: TCP</li><li id="EN-US_TOPIC_0048642616__en-us_topic_0042400609_li5391447153614">Port: 80</li><li id="EN-US_TOPIC_0048642616__en-us_topic_0042400609_li57518749153625">Destination: 169.254.0.0/16</li></ul>

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<h1 class="topictitle1">Exporting ECS Information</h1>
<div id="body1495618695087"><div class="section" id="EN-US_TOPIC_0060610074__section50407262175221"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0060610074__p61429748175232">The information of all <span id="EN-US_TOPIC_0060610074__text417674945710">ECS</span>s in your account can be exported to an XLSX file locally. The file includes the IDs, private IP addresses, and <span id="EN-US_TOPIC_0060610074__text585910407473">EIP</span>s of your <span id="EN-US_TOPIC_0060610074__text1819541316107">ECS</span>s.</p>
</div>
<div class="section" id="EN-US_TOPIC_0060610074__section8755447183137"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0060610074__ol53102723183146"><li id="EN-US_TOPIC_0060610074__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0060610074__li464234814566">Click <span><img id="EN-US_TOPIC_0060610074__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0060610074__li3026638618324">Under <strong id="EN-US_TOPIC_0060610074__b13172104122311"><span id="EN-US_TOPIC_0060610074__text817115412311">Computing</span></strong>, click <strong id="EN-US_TOPIC_0060610074__b417234112318">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0060610074__li27041584183239">In the upper right corner above the <span id="EN-US_TOPIC_0060610074__text136517171010">ECS</span> list, click <span><img id="EN-US_TOPIC_0060610074__image101125644218" src="en-us_image_0142360062.png"></span>.<p id="EN-US_TOPIC_0060610074__p4335838818357">The system will automatically export all <span id="EN-US_TOPIC_0060610074__text12201619121013">ECS</span>s in the current region under your account to a local directory.</p>
<div class="section" id="EN-US_TOPIC_0060610074__section8755447183137"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0060610074__ol53102723183146"><li id="EN-US_TOPIC_0060610074__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0060610074__li464234814566">Click <span><img id="EN-US_TOPIC_0060610074__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0060610074__li3026638618324">Under <strong id="EN-US_TOPIC_0060610074__b4494101113275"><span id="EN-US_TOPIC_0060610074__text12494201132718">Computing</span></strong>, click <strong id="EN-US_TOPIC_0060610074__b4494101111276">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0060610074__li27041584183239">In the upper right corner above the <span id="EN-US_TOPIC_0060610074__text136517171010">ECS</span> list, click <span><img id="EN-US_TOPIC_0060610074__image101125644218" src="en-us_image_0142360062.png"></span>.<p id="EN-US_TOPIC_0060610074__p4335838818357">The system will automatically export all <span id="EN-US_TOPIC_0060610074__text12201619121013">ECS</span>s in the current region under your account to a local directory.</p>
<div class="fignone" id="EN-US_TOPIC_0060610074__fig14349111531814"><span class="figcap"><b>Figure 1 </b>Exporting ECS information</span><br><span><img id="EN-US_TOPIC_0060610074__image083164915491" src="en-us_image_0000002351477222.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="note" id="EN-US_TOPIC_0060610074__note82441949182614"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0060610074__p2244184912263">To export certain <span id="EN-US_TOPIC_0060610074__text4250320121011">ECS</span>s, select the target <span id="EN-US_TOPIC_0060610074__text1597816265246">ECS</span>s and click <span><img id="EN-US_TOPIC_0060610074__image1069965983716" src="en-us_image_0142360062.png"></span> in the upper right corner of the page.</p>
</div></div>

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<div class="section" id="EN-US_TOPIC_0074752335__section1399111463019"><h4 class="sectiontitle">Constraints</h4><p id="EN-US_TOPIC_0074752335__p511416521805">This method applies only to Linux <span id="EN-US_TOPIC_0074752335__text1325335613412">ECS</span>s.</p>
</div>
<div class="section" id="EN-US_TOPIC_0074752335__section4184679493755"><h4 class="sectiontitle">Procedure</h4><p id="EN-US_TOPIC_0074752335__p1131981985817">For example, there are two <span id="EN-US_TOPIC_0074752335__text0172142013449">ECS</span>s in a VPC, ecs-01 and ecs-02. Perform the following operations to enable communication using hostnames between ecs-01 and ecs-02:</p>
<ol id="EN-US_TOPIC_0074752335__ol320630549475"><li id="EN-US_TOPIC_0074752335__li633621819475"><span>Log in to ecs-01 and ecs-02 and obtain their private IP addresses.</span><p><ol type="a" id="EN-US_TOPIC_0074752335__ol368664049475"><li id="EN-US_TOPIC_0074752335__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0074752335__li3926836094723">Under <strong id="EN-US_TOPIC_0074752335__b2719162921310"><span id="EN-US_TOPIC_0074752335__text1771912971316">Computing</span></strong>, click <strong id="EN-US_TOPIC_0074752335__b167201029121319">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0074752335__li894662794740">On the <strong id="EN-US_TOPIC_0074752335__b35571753437">Elastic Cloud Server</strong> page, obtain the private IP address in the <strong id="EN-US_TOPIC_0074752335__b163001011134315">IP Address</strong> column.<p id="EN-US_TOPIC_0074752335__p73307141939">For example, the obtained private IP addresses are as follows:</p>
<ol id="EN-US_TOPIC_0074752335__ol320630549475"><li id="EN-US_TOPIC_0074752335__li633621819475"><span>Log in to ecs-01 and ecs-02 and obtain their private IP addresses.</span><p><ol type="a" id="EN-US_TOPIC_0074752335__ol368664049475"><li id="EN-US_TOPIC_0074752335__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0074752335__li3926836094723">Under <strong id="EN-US_TOPIC_0074752335__b1399173811116"><span id="EN-US_TOPIC_0074752335__text1939833817110">Computing</span></strong>, click <strong id="EN-US_TOPIC_0074752335__b2039923810117">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0074752335__li894662794740">On the <strong id="EN-US_TOPIC_0074752335__b35571753437">Elastic Cloud Server</strong> page, obtain the private IP address in the <strong id="EN-US_TOPIC_0074752335__b163001011134315">IP Address</strong> column.<p id="EN-US_TOPIC_0074752335__p73307141939">For example, the obtained private IP addresses are as follows:</p>
<p id="EN-US_TOPIC_0074752335__p1660520216315">ecs-01: 192.168.0.1</p>
<p id="EN-US_TOPIC_0074752335__p10836144314316">ecs-02: 192.168.0.2</p>
</li></ol>

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<h1 class="topictitle1">Dedicated General-Purpose ECSs</h1>
<div id="body1514875533906"><div class="section" id="EN-US_TOPIC_0091224748__section78382481397"><h4 class="sectiontitle">Overview</h4><p id="EN-US_TOPIC_0091224748__p953819220579">C9 ECSs use the sixth-generation Intel &reg; Xeon &reg; Scalable processors and KVM virtualization to provide enhanced compute, network, and security performance for high-load scenarios such as databases, gaming, and HPC.</p>
<p id="EN-US_TOPIC_0091224748__p15401225273">C7n ECSs use the third-generation Intel Xeon scalable processors to provide enhanced computing, security, and stability. Each C7n ECS can have a maximum number of 96 vCPUs and a memory speed of 3,200 MHz, supports secure boot, and provides a secure, trusted cloud environment.</p>
<p id="EN-US_TOPIC_0091224748__p15401225273">C7n ECSs use the third-generation Intel&reg; Xeon&reg; Scalable processors to provide enhanced performance, security, and stability. A C7n ECS can have up to 96 vCPUs and 3,200 MHz memory frequency, and provides a secure and trusted cloud environment.</p>
<p id="EN-US_TOPIC_0091224748__p16107104131712">C7t ECSs support encryption using Intel&reg; SGX to protect the confidentiality and integrity of key code and data from being damaged by malware. Based on the TPM/TCM chip, the boot chain from the underlying server hardware to the guest OS can be measured and verified to implement trusted boot.</p>
<p id="EN-US_TOPIC_0091224748__p12500117125814">C4 ECSs use second-generation Intel&reg; Xeon&reg; Scalable processors to provide powerful and stable computing performance. By using high-speed intelligent NICs, C4 ECSs offer ultra-high network bandwidth and packets per second (PPS).</p>
<p id="EN-US_TOPIC_0091224748__p115108237919">C3 ECSs use Intel&reg; Xeon&reg; Scalable processors, KVM virtualization, Data Plane Development Kit (DPDK) rapid packet processing mechanism, and high-performance NICs to deliver high and stable computing performance for enterprise-grade applications.</p>

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</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0206596990.html">HSS</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0000001469584572.html">Configuring Secure Boot for an ECS</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0000002424701056.html">Configuring TPM for an ECS</a></strong><br>
</li>
</ul>

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</div>
<div class="section" id="EN-US_TOPIC_0093492517__section5243818103912"><h4 class="sectiontitle">Constraints</h4><ul id="EN-US_TOPIC_0093492517__ul298053012418"><li id="EN-US_TOPIC_0093492517__li59801830134118">Changing the security group will overwrite the original security group settings.</li><li id="EN-US_TOPIC_0093492517__li176711684210">Using multiple security groups may deteriorate <span id="EN-US_TOPIC_0093492517__text9329193614394">ECS</span> network performance. You are advised to select no more than five security groups.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0093492517__section148110439474"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0093492517__ol146871568377"><li id="EN-US_TOPIC_0093492517__li7326164551918">Log in to the management console and access the ECS list page.</li><li id="EN-US_TOPIC_0093492517__li1168746173718">Click <span><img id="EN-US_TOPIC_0093492517__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0093492517__li206871564372">Under <strong id="EN-US_TOPIC_0093492517__b319313811516"><span id="EN-US_TOPIC_0093492517__text019373861514">Computing</span></strong>, click <strong id="EN-US_TOPIC_0093492517__b4193143810159">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0093492517__li6688267371">In the ECS list, choose <strong id="EN-US_TOPIC_0093492517__b1747184618712">More</strong> &gt; <strong id="EN-US_TOPIC_0093492517__b347112464713">Manage Network</strong> &gt; <strong id="EN-US_TOPIC_0093492517__b16471184618712">Change Security Group</strong> in the <strong id="EN-US_TOPIC_0093492517__b147117466713">Operation</strong> column.<p id="EN-US_TOPIC_0093492517__p968836143718">The <strong id="EN-US_TOPIC_0093492517__b842352706162949">Change Security Group</strong> panel slides out.</p>
<div class="section" id="EN-US_TOPIC_0093492517__section148110439474"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0093492517__ol146871568377"><li id="EN-US_TOPIC_0093492517__li7326164551918">Log in to the management console and access the <span id="EN-US_TOPIC_0093492517__en-us_topic_0000001825604541_ph757171041418">ECS</span> list page.</li><li id="EN-US_TOPIC_0093492517__li1168746173718">Click <span><img id="EN-US_TOPIC_0093492517__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0093492517__li206871564372">Under <strong id="EN-US_TOPIC_0093492517__b319313811516"><span id="EN-US_TOPIC_0093492517__text019373861514">Computing</span></strong>, click <strong id="EN-US_TOPIC_0093492517__b4193143810159">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0093492517__li6688267371">In the ECS list, choose <strong id="EN-US_TOPIC_0093492517__b1747184618712">More</strong> &gt; <strong id="EN-US_TOPIC_0093492517__b347112464713">Manage Network</strong> &gt; <strong id="EN-US_TOPIC_0093492517__b16471184618712">Change Security Group</strong> in the <strong id="EN-US_TOPIC_0093492517__b147117466713">Operation</strong> column.<p id="EN-US_TOPIC_0093492517__p968836143718">The <strong id="EN-US_TOPIC_0093492517__b842352706162949">Change Security Group</strong> panel slides out.</p>
<div class="fignone" id="EN-US_TOPIC_0093492517__fig1673733486"><span class="figcap"><b>Figure 1 </b>Change Security Group</span><br><span><img id="EN-US_TOPIC_0093492517__image1329222510" src="en-us_image_0000002385344877.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0093492517__li14114175682518">Select the target NIC and security groups.<p id="EN-US_TOPIC_0093492517__p1615510191262"><a name="EN-US_TOPIC_0093492517__li14114175682518"></a><a name="li14114175682518"></a>You can select multiple security groups. In such a case, the rules of all the selected security groups will apply to the <span id="EN-US_TOPIC_0093492517__text10680201271119">ECS</span>.</p>
<p id="EN-US_TOPIC_0093492517__p1669712426182">To create a security group, click <strong id="EN-US_TOPIC_0093492517__b1291994117114">Create Security Group</strong>.</p>

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<p id="EN-US_TOPIC_0095020344__p27159178171833">ECSs run on physical hosts. Although there are multiple mechanisms to ensure system reliability, fault tolerance, and high availability, host hardware might be damaged or power failures might occur. If physical hosts cannot be powered on or restarted due to damage, CPU and memory data will be lost and live migration cannot be used to recovery ECSs.</p>
<p id="EN-US_TOPIC_0095020344__p1724300717186">The cloud platform provides automatic recovery by default to restart ECSs through cold migration, ensuring high availability and dynamic ECS migration. If a physical host accommodating ECSs breaks down, the ECSs will automatically be migrated to a functional physical host to minimize the impact on your services. During the process, the ECSs will restart.</p>
<div class="note" id="EN-US_TOPIC_0095020344__note0517104715155"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0095020344__ul44204578153149"><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li13108161011011">Auto recovery does not ensure user data consistency.</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li8563234153149">An <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text1566613396268">ECS</span> can be automatically recovered only if the physical server where the ECS resides becomes faulty. This function does not take effect if the fault is caused by the <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text19640163362917">ECS</span> itself.</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li47310571400">An <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text7771440112615">ECS</span> can be automatically recovered only after the physical server where the ECS resides is shut down. If the physical server is not shut down due to a fault, for example, a memory fault, auto recovery fails to take effect.</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li39651565154229">An <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text10235154116268">ECS</span> can be automatically recovered only once within 12 hours if the physical server where the ECS resides becomes faulty.</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li65207421154428"><span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text636616394380">ECS</span> auto recovery may fail in the following scenarios:<ul id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_ul35326811174342"><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li11530156555">No physical server is available for migration due to a system fault.</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li7503122219613">The target physical server does not have sufficient temporary capacity.</li></ul>
</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li7408113811249">An <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text11530124219383">ECS</span> with any of the following resources cannot be automatically recovered:<ul id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_ul113361426111711"><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li4336142641710">Local disk</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li18518015151817">Passthrough FPGA card</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li11391314203">Passthrough InfiniBand NIC</li></ul>
</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li7408113811249">An <span id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_text11530124219383">ECS</span> with any of the following resources cannot be automatically recovered:<ul id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_ul113361426111711"><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li4336142641710">Local disks</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li18518015151817">Passthrough FPGA cards</li><li id="EN-US_TOPIC_0095020344__en-us_topic_0070639443_li11391314203">Passthrough InfiniBand NICs</li></ul>
</li></ul>
</div></div>
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</div>
<div class="section" id="EN-US_TOPIC_0103285575__section1549713815243"><a name="EN-US_TOPIC_0103285575__section1549713815243"></a><a name="section1549713815243"></a><h4 class="sectiontitle">Using a Serial Number to Obtain the Disk Device Name (Windows)</h4><p id="EN-US_TOPIC_0103285575__p8497148102411">If a serial number is displayed on the console, use either of the following methods to obtain the disk name.</p>
<p id="EN-US_TOPIC_0103285575__p1611616258448"><strong id="EN-US_TOPIC_0103285575__b1293013363204">cmd</strong></p>
<ol id="EN-US_TOPIC_0103285575__ol91571536143614"><li id="EN-US_TOPIC_0103285575__li1215733614369">Start <strong id="EN-US_TOPIC_0103285575__b922182819264">cmd</strong> in a Windows OS as an administrator and run either of the following commands:<p id="EN-US_TOPIC_0103285575__p10803548134311"><strong id="EN-US_TOPIC_0103285575__b107621652134313">wmic diskdrive get serialnumber</strong></p>
<ol id="EN-US_TOPIC_0103285575__ol91571536143614"><li id="EN-US_TOPIC_0103285575__li1215733614369">Start <strong id="EN-US_TOPIC_0103285575__b922182819264">cmd</strong> in a Windows OS as an administrator and run any of the following commands:<p id="EN-US_TOPIC_0103285575__p10803548134311"><strong id="EN-US_TOPIC_0103285575__b107621652134313">wmic diskdrive get serialnumber</strong></p>
<p id="EN-US_TOPIC_0103285575__p1680334854314"><strong id="EN-US_TOPIC_0103285575__b10763652164316">wmic path win32_physicalmedia get SerialNumber</strong></p>
<p id="EN-US_TOPIC_0103285575__p1280364864320"><strong id="EN-US_TOPIC_0103285575__b7763115294319">wmic path Win32_DiskDrive get SerialNumber</strong></p>
<div class="note" id="EN-US_TOPIC_0103285575__note18497198202415"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0103285575__p14971882415">A serial number is the first 20 digits of a disk UUID.</p>
</div></div>
<p id="EN-US_TOPIC_0103285575__p114976852410">For example, if the serial number of a VBD disk on the console is 97c876c0-54b3-460a-b, run either of the following commands to obtain the serial number of the disk on the ECS OS:</p>
<p id="EN-US_TOPIC_0103285575__p114976852410">For example, if the serial number of a VBD disk on the console is 97c876c0-54b3-460a-b, run any of the following commands to obtain the serial number of the disk on the ECS OS:</p>
<p id="EN-US_TOPIC_0103285575__p174976818247"><strong id="EN-US_TOPIC_0103285575__b718102554413">wmic diskdrive get serialnumber</strong></p>
<p id="EN-US_TOPIC_0103285575__p12184259444"><strong id="EN-US_TOPIC_0103285575__b1718182544412">wmic path win32_physicalmedia get SerialNumber</strong></p>
<p id="EN-US_TOPIC_0103285575__p2018725184416"><strong id="EN-US_TOPIC_0103285575__b7188251445">wmic path Win32_DiskDrive get SerialNumber</strong></p>
@ -30,10 +30,10 @@
<div class="fignone" id="EN-US_TOPIC_0103285575__fig499418565481"><span class="figcap"><b>Figure 2 </b>Checking the disk corresponding to the serial number</span><br><span><img id="EN-US_TOPIC_0103285575__image189415519480" src="en-us_image_0000001081131958.png" title="Click to enlarge" class="imgResize"></span></div>
</li></ol>
<p id="EN-US_TOPIC_0103285575__p1658693814472"><strong id="EN-US_TOPIC_0103285575__b16684163912401">PowerShell</strong></p>
<ol id="EN-US_TOPIC_0103285575__ol260213824718"><li id="EN-US_TOPIC_0103285575__li560213804716">Start PowerShell as an administrator in a Windows OS.</li><li id="EN-US_TOPIC_0103285575__li16022381478">Run the following command to check the disk on which the logical disk is created:<ul id="EN-US_TOPIC_0103285575__ul13602438144719"><li id="EN-US_TOPIC_0103285575__li460212382479">Windows Server 2012 or later<ol type="a" id="EN-US_TOPIC_0103285575__ol3602143854711"><li id="EN-US_TOPIC_0103285575__li6602638104715">Run the following command to check the disk on which the logical disk is created:<p id="EN-US_TOPIC_0103285575__p12602438174712"><a name="EN-US_TOPIC_0103285575__li6602638104715"></a><a name="li6602638104715"></a><strong id="EN-US_TOPIC_0103285575__b2602133814710">Get-CimInstance -ClassName Win32_LogicalDiskToPartition |select Antecedent, Dependent |fl</strong></p>
<ol id="EN-US_TOPIC_0103285575__ol260213824718"><li id="EN-US_TOPIC_0103285575__li560213804716">Start PowerShell as an administrator in a Windows OS.</li><li id="EN-US_TOPIC_0103285575__li16022381478">Check the disk on which the logical disk is created.<ul id="EN-US_TOPIC_0103285575__ul13602438144719"><li id="EN-US_TOPIC_0103285575__li460212382479">Windows Server 2012 or later<ol type="a" id="EN-US_TOPIC_0103285575__ol3602143854711"><li id="EN-US_TOPIC_0103285575__li6602638104715">Run the following command to check the disk on which the logical disk is created:<p id="EN-US_TOPIC_0103285575__p12602438174712"><a name="EN-US_TOPIC_0103285575__li6602638104715"></a><a name="li6602638104715"></a><strong id="EN-US_TOPIC_0103285575__b2602133814710">Get-CimInstance -ClassName Win32_LogicalDiskToPartition |select Antecedent, Dependent |fl</strong></p>
<p id="EN-US_TOPIC_0103285575__p176021738204714">As shown in <a href="#EN-US_TOPIC_0103285575__fig1960253814473">Figure 3</a>, the disk is <strong id="EN-US_TOPIC_0103285575__b6436444181815">Disk 0</strong>.</p>
</li><li id="EN-US_TOPIC_0103285575__li3602133814710">Run the following command to view the mapping between the serial number and the disk:<p id="EN-US_TOPIC_0103285575__p1160218385477"><a name="EN-US_TOPIC_0103285575__li3602133814710"></a><a name="li3602133814710"></a><strong id="EN-US_TOPIC_0103285575__b146023380475">Get-Disk |select Number, SerialNumber</strong></p>
<p id="EN-US_TOPIC_0103285575__p460273817470">As shown in <a href="#EN-US_TOPIC_0103285575__fig1960253814473">Figure 3</a>, the disk is <strong id="EN-US_TOPIC_0103285575__b16914030192111">Disk 0</strong>.</p>
<p id="EN-US_TOPIC_0103285575__p460273817470">As shown in <a href="#EN-US_TOPIC_0103285575__fig1960253814473">Figure 3</a>, the serial number <strong id="EN-US_TOPIC_0103285575__b47421215174119">97c876c0-54b3-460a-b</strong> is mapped to <strong id="EN-US_TOPIC_0103285575__b16914030192111">Disk 0</strong>.</p>
<div class="fignone" id="EN-US_TOPIC_0103285575__fig1960253814473"><a name="EN-US_TOPIC_0103285575__fig1960253814473"></a><a name="fig1960253814473"></a><span class="figcap"><b>Figure 3 </b>Viewing the disk on which the logical disk is created</span><br><span><img id="EN-US_TOPIC_0103285575__image060203812474" src="en-us_image_0000001127906793.png" title="Click to enlarge" class="imgResize"></span></div>
</li></ol>
</li><li id="EN-US_TOPIC_0103285575__li7602183813475">Versions earlier than Windows 2012<ol type="a" id="EN-US_TOPIC_0103285575__ol10602143812475"><li id="EN-US_TOPIC_0103285575__li1260219386475">Run the following command to check the disk on which the logical disk is created:<p id="EN-US_TOPIC_0103285575__p5602173820471"><a name="EN-US_TOPIC_0103285575__li1260219386475"></a><a name="li1260219386475"></a><strong id="EN-US_TOPIC_0103285575__b960293884714">Get-WmiObject -Class Win32_PhysicalMedia |select Tag, Serialnumber</strong></p>

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<a name="EN-US_TOPIC_0105127983"></a><a name="EN-US_TOPIC_0105127983"></a>
<h1 class="topictitle1">Why Can't I Log In to My Linux ECS?</h1>
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0105127983__section203378140307"><h4 class="sectiontitle">Symptom</h4><p id="EN-US_TOPIC_0105127983__p18931553173018">A Linux ECS cannot be logged in to due to some reasons. For example, the network is abnormal, the firewall does not allow access to the local port for accessing the remote desktop, or the ECS vCPUs are overloaded.</p>
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0105127983__section203378140307"><h4 class="sectiontitle">Symptom</h4><p id="EN-US_TOPIC_0105127983__p18931553173018">A Linux ECS cannot be logged in to due to some reasons. For example, the network is abnormal, remote desktop access is blocked by the firewall on the ECS, or the ECS vCPUs are overloaded.</p>
<p id="EN-US_TOPIC_0105127983__p63262015122">This section describes how to troubleshoot Linux ECS login failures.</p>
<p id="EN-US_TOPIC_0105127983__p15615114212307">If you cannot log in to your Linux ECS, follow the instructions provided in <a href="#EN-US_TOPIC_0105127983__section16351720103416">Checking the VNC Login</a>. Then, locate the login fault by referring to <a href="#EN-US_TOPIC_0105127983__section51421019195617">Fault Locating</a>.</p>
</div>
@ -11,7 +11,7 @@
</li><li id="EN-US_TOPIC_0105127983__li61542434359">(Optional) When the system displays "Press CTRL+ALT+DELETE to log on", click <strong id="EN-US_TOPIC_0105127983__en-us_topic_0093263548_b76639262315">Send CtrlAltDel</strong> in the upper part of the remote login page to log in to the ECS.<div class="note" id="EN-US_TOPIC_0105127983__en-us_topic_0093263548_note15831651185"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0105127983__en-us_topic_0093263548_p383155151813">Do not press <strong id="EN-US_TOPIC_0105127983__en-us_topic_0093263548_b842352706175651">CTRL+ALT+DELETE</strong> on the physical keyboard because this operation does not take effect.</p>
</div></div>
</li></ol>
<p id="EN-US_TOPIC_0105127983__p8923165785318">If the VNC login still fails, record the resource details and fault occurred time for further fault locating and analysis.</p>
<p id="EN-US_TOPIC_0105127983__p8923165785318">If the VNC login still fails, record the resource details and fault occurrence time for further fault locating and analysis.</p>
</div>
<div class="section" id="EN-US_TOPIC_0105127983__section51421019195617"><a name="EN-US_TOPIC_0105127983__section51421019195617"></a><a name="section51421019195617"></a><h4 class="sectiontitle">Fault Locating</h4><p id="EN-US_TOPIC_0105127983__p13263153715538">If you can log in to the ECS using VNC but cannot log in to it using a remote desktop connection, locate the fault by referring to this section.</p>
<p id="EN-US_TOPIC_0105127983__p163466913016">The following fault causes are sequenced based on their occurrence probability.</p>
@ -107,7 +107,7 @@
</div>
<div class="section" id="EN-US_TOPIC_0105127983__section830193612460"><a name="EN-US_TOPIC_0105127983__section830193612460"></a><a name="section830193612460"></a><h4 class="sectiontitle">Checking Whether the Security Group Is Correctly Configured</h4><p id="EN-US_TOPIC_0105127983__p20455351933">Check whether the local host can access port 22 on the ECS.</p>
<p id="EN-US_TOPIC_0105127983__en-us_topic_0096686377_p81727318238">Run the following command to check whether port 22 is accessible:</p>
<p id="EN-US_TOPIC_0105127983__en-us_topic_0096686377_p2137132210223"><strong id="EN-US_TOPIC_0105127983__en-us_topic_0096686377_b13254552225">telnet <em id="EN-US_TOPIC_0105127983__i6214518113210"><span id="EN-US_TOPIC_0105127983__text18886113313010">ECS</span> private IP address</em></strong></p>
<p id="EN-US_TOPIC_0105127983__en-us_topic_0096686377_p2137132210223"><strong id="EN-US_TOPIC_0105127983__b206241912144112">telnet </strong><em id="EN-US_TOPIC_0105127983__i11470515134120">&lt;</em><em id="EN-US_TOPIC_0105127983__i8322192194016"><span id="EN-US_TOPIC_0105127983__text173228284010">ECS</span>-private-IP-address&gt;</em></p>
<p id="EN-US_TOPIC_0105127983__p113651127115317">If port 22 is inaccessible, check whether port 22 is opened in the security group rule.</p>
<p id="EN-US_TOPIC_0105127983__p66736719386">On the ECS details page, click the <strong id="EN-US_TOPIC_0105127983__b199618723613">Security Groups</strong> tab and check that port 22 is configured in the inbound rule of the security group.</p>
<div class="fignone" id="EN-US_TOPIC_0105127983__fig21551910162316"><span class="figcap"><b>Figure 4 </b>Checking remote access ports</span><br><span><img id="EN-US_TOPIC_0105127983__image29472028113913" src="en-us_image_0000002385628601.png" title="Click to enlarge" class="imgResize"></span></div>
@ -123,7 +123,7 @@
</div>
<div class="section" id="EN-US_TOPIC_0105127983__section9583105919232"><a name="EN-US_TOPIC_0105127983__section9583105919232"></a><a name="section9583105919232"></a><h4 class="sectiontitle">Checking the IP Address Whitelist for SSH Logins (with HSS Enabled)</h4><p id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_p7113171462414">After HSS is enabled, you can configure an IP address whitelist for SSH logins as required. The IP address whitelist controls SSH access to ECSs, effectively preventing account cracking.</p>
<p id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_p1537965917243">After you configure the allowlist, SSH logins will be allowed only from IP addresses in the allowlist.</p>
<ol id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_ol17858115432815"><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li3858554102817">On the <strong id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_b6481153113810">Events</strong> page, check whether a local host IP address is intercepted due to brute force cracking.</li><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li685885412284">Check whether the IP address whitelist for SSH logins has been enabled. If it has been enabled, ensure that the IP address of the local host has been added to the IP address whitelist.<div class="caution" id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_note2090824103216"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><ul id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_ul1937912596242"><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li15379185932417">Before enabling this function, ensure that all IP addresses that need to initiate SSH logins are added to the allowlist. Otherwise, you cannot remotely log in to your ECS through SSH.</li><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li1437935912246">Exercise caution when adding a local IP address to the allowlist. This will make HSS no longer restrict access from this IP address to your ECSs.</li></ul>
<ol id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_ol17858115432815"><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li3858554102817">On the <strong id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_b6481153113810">Events</strong> page, check whether a local host IP address is intercepted due to brute force cracking.</li><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li685885412284">Check whether the IP address whitelist for SSH logins has been enabled. If it has been enabled, ensure that the IP address of the local host has been added to the IP address whitelist.<div class="caution" id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_note2090824103216"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><ul id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_ul1937912596242"><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li15379185932417">Before enabling the whitelist to control SSH logins, ensure that all IP addresses that need to initiate SSH logins are added to the allowlist. Otherwise, you cannot remotely log in to your ECS through SSH.</li><li id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_li1437935912246">Exercise caution when adding a local IP address to the allowlist. This will make HSS no longer restrict access from this IP address to your ECSs.</li></ul>
</div></div>
<p id="EN-US_TOPIC_0105127983__en-us_topic_0018073217_p19801141612346">For more details, see <a href="https://docs.otc.t-systems.com/host-security-service/umn/enabling_hss/common_security_configuration/configuring_server_login_protection.html#hss-01-0566" target="_blank" rel="noopener noreferrer">Configuring Server Login Protection</a>.</p>
</li></ol>
@ -138,10 +138,10 @@
<p id="EN-US_TOPIC_0105127983__p8796113519412">You can also disable or uninstall the third-party antivirus software and try to remotely log in to the ECS again.</p>
</div>
<div class="section" id="EN-US_TOPIC_0105127983__section331935012531"><a name="EN-US_TOPIC_0105127983__section331935012531"></a><a name="section331935012531"></a><h4 class="sectiontitle">Checking Whether an Error Occurred During a Remote Login</h4><p id="EN-US_TOPIC_0105127983__p112001124133117">If an error message is displayed during remote login, check the operation guide based on the error information.</p>
<p id="EN-US_TOPIC_0105127983__p19875155920158">If the fault persists, record the resource details and fault occurred time, and contact technical support for assistance.</p>
<p id="EN-US_TOPIC_0105127983__p19875155920158">If the fault persists, record the resource details and fault occurrence time, and contact technical support for assistance.</p>
</div>
<p id="EN-US_TOPIC_0105127983__p362342411620"></p>
<p id="EN-US_TOPIC_0105127983__p73821810115012">If the fault persists after the preceding operations are performed, record the resource details and fault occurred time, and contact customer service for technical support.</p>
<p id="EN-US_TOPIC_0105127983__p73821810115012">If the fault persists after the preceding operations are performed, record the resource details and fault occurrence time, and contact customer service for technical support.</p>
</div>
<div>
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</table>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0108255889__section40936232171845"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0108255889__ol1607973117228"><li id="EN-US_TOPIC_0108255889__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0108255889__li464234814566">Click <span><img id="EN-US_TOPIC_0108255889__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0108255889__li1859019014179">Under <strong id="EN-US_TOPIC_0108255889__b1941413171417"><span id="EN-US_TOPIC_0108255889__text17414101774114">Computing</span></strong>, click <strong id="EN-US_TOPIC_0108255889__b84141917164115">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0108255889__li8248795172237">View <strong id="EN-US_TOPIC_0108255889__b1263507949184836">Failures</strong> on the right side of common operations above the ECS list.<div class="fignone" id="EN-US_TOPIC_0108255889__fig1678913358104"><span class="figcap"><b>Figure 1 </b>Failures</span><br><span><img id="EN-US_TOPIC_0108255889__image8810543204613" src="en-us_image_0000002385194877.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="EN-US_TOPIC_0108255889__section40936232171845"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0108255889__ol1607973117228"><li id="EN-US_TOPIC_0108255889__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0108255889__li464234814566">Click <span><img id="EN-US_TOPIC_0108255889__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0108255889__li1859019014179">Under <strong id="EN-US_TOPIC_0108255889__b126072319263"><span id="EN-US_TOPIC_0108255889__text16825102892510">Computing</span></strong>, click <strong id="EN-US_TOPIC_0108255889__b3607193115269">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0108255889__li8248795172237">View <strong id="EN-US_TOPIC_0108255889__b1263507949184836">Failures</strong> on the right side of common operations above the ECS list.<div class="fignone" id="EN-US_TOPIC_0108255889__fig1678913358104"><span class="figcap"><b>Figure 1 </b>Failures</span><br><span><img id="EN-US_TOPIC_0108255889__image8810543204613" src="en-us_image_0000002385194877.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0108255889__li5737160017537">Click the number displayed in the <strong id="EN-US_TOPIC_0108255889__b695856389165931">Failures</strong> area to view task details.<ul id="EN-US_TOPIC_0108255889__ul11775165717215"><li id="EN-US_TOPIC_0108255889__li197751657122116"><strong id="EN-US_TOPIC_0108255889__b842352706162312">Creation Failures</strong>: show the failed ECS creation tasks.</li><li id="EN-US_TOPIC_0108255889__li1658184612220"><strong id="EN-US_TOPIC_0108255889__b842352706162426">Operation Failures</strong>: show the tasks with failed operations and error codes, which help you troubleshoot the faults.</li></ul>
</li></ol>
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</div>
<div class="section" id="EN-US_TOPIC_0133365988__section1213835718599"><h4 class="sectiontitle">Constraints</h4><ul id="EN-US_TOPIC_0133365988__ul2178142918719"><li id="EN-US_TOPIC_0133365988__li31785299713">Only stopped ECSs can be migrated.</li><li id="EN-US_TOPIC_0133365988__li12167232111112">To ensure that the migration is successful, there must be an available DeH.</li><li id="EN-US_TOPIC_0133365988__li52921358576">CBR and CSBS backups are not affected by migrations.</li><li id="EN-US_TOPIC_0133365988__li102722452718">ECS IDs remain unchanged after a migration.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0133365988__section12638144614015"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0133365988__ol165787319117"><li id="EN-US_TOPIC_0133365988__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0133365988__li464234814566">Click <span><img id="EN-US_TOPIC_0133365988__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0133365988__li1859019014179">Under <strong id="EN-US_TOPIC_0133365988__b147117417338"><span id="EN-US_TOPIC_0133365988__text07111541153318">Computing</span></strong>, click <strong id="EN-US_TOPIC_0133365988__b1571194163312">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0133365988__li16624242519">In the ECS list, locate the ECS to be migrated, choose <strong id="EN-US_TOPIC_0133365988__b1863381710227">More</strong> &gt; <strong id="EN-US_TOPIC_0133365988__b46335174226">View O&amp;M and Monitoring</strong> &gt; <strong id="EN-US_TOPIC_0133365988__b963341712228">Reallocate ECS</strong> in the <strong id="EN-US_TOPIC_0133365988__b15633201714227">Operation</strong> column.</li><li id="EN-US_TOPIC_0133365988__li106356115312">In the displayed dialog box, select the target DeH.<div class="note" id="EN-US_TOPIC_0133365988__note141301611124515"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0133365988__p17130181194511">If no DeHs are available, create a DeH first. For details, see Allocating DeHs in the <em id="EN-US_TOPIC_0133365988__i789913419340">Dedicated Host User Guide</em>.</p>
<div class="section" id="EN-US_TOPIC_0133365988__section12638144614015"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0133365988__ol165787319117"><li id="EN-US_TOPIC_0133365988__li14469519145710">Log in to the management console.</li><li id="EN-US_TOPIC_0133365988__li464234814566">Click <span><img id="EN-US_TOPIC_0133365988__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0133365988__li1859019014179">Under <strong id="EN-US_TOPIC_0133365988__b1944133810920"><span id="EN-US_TOPIC_0133365988__text154403387919">Computing</span></strong>, click <strong id="EN-US_TOPIC_0133365988__b44417383912">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0133365988__li16624242519">In the ECS list, locate the ECS to be migrated, choose <strong id="EN-US_TOPIC_0133365988__b1863381710227">More</strong> &gt; <strong id="EN-US_TOPIC_0133365988__b46335174226">View O&amp;M and Monitoring</strong> &gt; <strong id="EN-US_TOPIC_0133365988__b963341712228">Reallocate ECS</strong> in the <strong id="EN-US_TOPIC_0133365988__b15633201714227">Operation</strong> column.</li><li id="EN-US_TOPIC_0133365988__li106356115312">In the displayed dialog box, select the target DeH.<div class="note" id="EN-US_TOPIC_0133365988__note141301611124515"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0133365988__p17130181194511">If no DeHs are available, create a DeH first. For details, see Allocating DeHs in the <em id="EN-US_TOPIC_0133365988__i789913419340">Dedicated Host User Guide</em>.</p>
</div></div>
</li><li id="EN-US_TOPIC_0133365988__li10732174185214">Click <strong id="EN-US_TOPIC_0133365988__b73581193016">OK</strong>.</li></ol>
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<div id="body1543198503877"><div class="section" id="EN-US_TOPIC_0142266317__section16259932121511"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0142266317__p16976836181511">After an <span id="EN-US_TOPIC_0142266317__text0742629171812">ECS</span> is created, you can change its name as needed.</p>
<p id="EN-US_TOPIC_0142266317__p639835172915">Multiple <span id="EN-US_TOPIC_0142266317__text166341730121814">ECS</span> names can be changed in a batch. After the change is complete, the <span id="EN-US_TOPIC_0142266317__text156741358185814">ECS</span> names will be identical.</p>
</div>
<div class="section" id="EN-US_TOPIC_0142266317__section147834671520"><h4 class="sectiontitle">Changing the Name of a Single ECS</h4><ol id="EN-US_TOPIC_0142266317__ol173631126292"><li id="EN-US_TOPIC_0142266317__li53851157155620">Log in to the management console.</li><li id="EN-US_TOPIC_0142266317__li464234814566">Click <span><img id="EN-US_TOPIC_0142266317__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0142266317__li20776247143354">Under <strong id="EN-US_TOPIC_0142266317__b182773424218"><span id="EN-US_TOPIC_0142266317__text152478662716">Computing</span></strong>, click <strong id="EN-US_TOPIC_0142266317__b18277154194217">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0142266317__li1472787014179">Click the ECS for which you want to change the name.<p id="EN-US_TOPIC_0142266317__p216070221280"><a name="EN-US_TOPIC_0142266317__li1472787014179"></a><a name="li1472787014179"></a>The ECS details page is displayed.</p>
<div class="section" id="EN-US_TOPIC_0142266317__section147834671520"><h4 class="sectiontitle">Changing the Name of a Single ECS</h4><ol id="EN-US_TOPIC_0142266317__ol173631126292"><li id="EN-US_TOPIC_0142266317__li53851157155620">Log in to the management console.</li><li id="EN-US_TOPIC_0142266317__li464234814566">Click <span><img id="EN-US_TOPIC_0142266317__en-us_topic_0000001825604541_image9499446838" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0142266317__li20776247143354">Under <strong id="EN-US_TOPIC_0142266317__b11349301092"><span id="EN-US_TOPIC_0142266317__text1734920498">Computing</span></strong>, click <strong id="EN-US_TOPIC_0142266317__b634915013914">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0142266317__li1472787014179">Click the ECS for which you want to change the name.<p id="EN-US_TOPIC_0142266317__p216070221280"><a name="EN-US_TOPIC_0142266317__li1472787014179"></a><a name="li1472787014179"></a>The ECS details page is displayed.</p>
</li><li id="EN-US_TOPIC_0142266317__li19863113115292">Click <span><img id="EN-US_TOPIC_0142266317__image1435883314309" src="en-us_image_0000001710878525.png" title="Click to enlarge" class="imgResize"></span> next to the <span id="EN-US_TOPIC_0142266317__text1258135812304">ECS</span> name and edit it.<div class="fignone" id="EN-US_TOPIC_0142266317__fig1611518553312"><span class="figcap"><b>Figure 1 </b>Changing the ECS name</span><br><span><img id="EN-US_TOPIC_0142266317__image172886142203" src="en-us_image_0000002385172005.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="EN-US_TOPIC_0142266317__li2883924173514">Click <span><img id="EN-US_TOPIC_0142266317__image72710184362" src="en-us_image_0000001705857469.png"></span>.</li></ol>
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</li><li id="EN-US_TOPIC_0244854543__li198634731616">In the <strong id="EN-US_TOPIC_0244854543__b18428927161814">Services</strong> window, restart <strong id="EN-US_TOPIC_0244854543__b111961919194">Remote Desktop Services</strong> or the ECS.</li><li id="EN-US_TOPIC_0244854543__li165144514515">Use "IP address:Port" to remotely access the ECS.</li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0244854543__section488818350534"><h4 class="sectiontitle">Linux</h4><p id="EN-US_TOPIC_0244854543__p051717178547">The following procedure uses an ECS running CentOS 7.3 as an example. The default login port of a Linux <span id="EN-US_TOPIC_0244854543__text14242038184619">ECS</span> is 22. To change it to port 2020, for example, do as follows:</p>
<ol id="EN-US_TOPIC_0244854543__ol921424911551"><li id="EN-US_TOPIC_0244854543__li25831409286">Modify the security group rule.<ol type="a" id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_ol728616471917"><li id="EN-US_TOPIC_0244854543__li187360184917">Log in to the management console.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li123773270191">Click <span><img id="EN-US_TOPIC_0244854543__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li11378827141916">Under <strong id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_b138881188273"><span id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_text1275161811259">Computing</span></strong>, select <strong id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_b11888148142715">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_en-us_topic_0114895216_en-us_topic_0112947264_li10731114711408">On the ECS list, click the name of an ECS for which you want to modify the security group rule.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_en-us_topic_0114895216_en-us_topic_0112947264_li16506184494811">On the ECS details page, click the security group in the <strong id="EN-US_TOPIC_0244854543__b1378904740">Security Groups</strong> area to go to the security group details page.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li337862761911">On the <strong id="EN-US_TOPIC_0244854543__b907933460">Inbound Rules</strong> tab, click <strong id="EN-US_TOPIC_0244854543__b1369531278">Add Rule</strong>. In the displayed dialog box, set <strong id="EN-US_TOPIC_0244854543__b1313526900">Protocol &amp; Port</strong> as follows:<ul id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_ul11591152511259"><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li124776586277"><strong id="EN-US_TOPIC_0244854543__b1699849049">Protocols</strong>: TCP (Custom ports)</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li1591132515257"><strong id="EN-US_TOPIC_0244854543__b1422230427">Port</strong>: 2020</li></ul>
<ol id="EN-US_TOPIC_0244854543__ol921424911551"><li id="EN-US_TOPIC_0244854543__li25831409286">Modify the security group rule.<ol type="a" id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_ol728616471917"><li id="EN-US_TOPIC_0244854543__li187360184917">Log in to the management console.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li123773270191">Click <span><img id="EN-US_TOPIC_0244854543__en-us_topic_0000001825604541_image9499446838_1" src="en-us_image_0000002188678994.png"></span> in the upper left corner and select a region and project.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li11378827141916">Under <strong id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_b138881188273"><span id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_text1275161811259">Computing</span></strong>, click <strong id="EN-US_TOPIC_0244854543__en-us_topic_0039588795_b11888148142715">Elastic Cloud Server</strong>.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_en-us_topic_0114895216_en-us_topic_0112947264_li10731114711408">On the ECS list, click the name of an ECS for which you want to modify the security group rule.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_en-us_topic_0114895216_en-us_topic_0112947264_li16506184494811">On the ECS details page, click the security group in the <strong id="EN-US_TOPIC_0244854543__b1378904740">Security Groups</strong> area to go to the security group details page.</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li337862761911">On the <strong id="EN-US_TOPIC_0244854543__b907933460">Inbound Rules</strong> tab, click <strong id="EN-US_TOPIC_0244854543__b1369531278">Add Rule</strong>. In the displayed dialog box, set <strong id="EN-US_TOPIC_0244854543__b1313526900">Protocol &amp; Port</strong> as follows:<ul id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_ul11591152511259"><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li124776586277"><strong id="EN-US_TOPIC_0244854543__b1699849049">Protocols</strong>: TCP (Custom ports)</li><li id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_li1591132515257"><strong id="EN-US_TOPIC_0244854543__b1422230427">Port</strong>: 2020</li></ul>
<p id="EN-US_TOPIC_0244854543__en-us_topic_0244854543_p1614622010252">For details, see "Adding a Security Group Rule" in the <em id="EN-US_TOPIC_0244854543__i1353593615506">Virtual Private Cloud User Guide</em>.</p>
</li></ol>
</li><li id="EN-US_TOPIC_0244854543__li12920738192914">Log in to the ECS.</li><li id="EN-US_TOPIC_0244854543__li621411497559">Run the following command to edit the sshd configuration file:<p id="EN-US_TOPIC_0244854543__p199520179562"><a name="EN-US_TOPIC_0244854543__li621411497559"></a><a name="li621411497559"></a><strong id="EN-US_TOPIC_0244854543__b127342199567">vi /etc/ssh/sshd_config</strong></p>