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zhangyue
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Reviewed-by: Miskanin, Jan <jan.miskanin@t-systems.com> Co-authored-by: zhangyue <zhangyue164@huawei.com> Co-committed-by: zhangyue <zhangyue164@huawei.com>
121 lines
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121 lines
11 KiB
HTML
<a name="evs_01_0024"></a><a name="evs_01_0024"></a>
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<h1 class="topictitle1">Creating a DR ECS (Deprecated)</h1>
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<div id="body1508295804297"><div class="section" id="evs_01_0024__section44945912112556"><h4 class="sectiontitle">Scenarios</h4><p id="evs_01_0024__p35624973171428">Before you create an EVS replication pair, create a DR ECS in the secondary AZ for the production ECS. The DR ECS parameters must be consistent with those of the production ECS. The parameters include the ECS specifications and the parameters of the production ECS's EVS disks, subnet, and security group.</p>
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<p id="evs_01_0024__p28489648112559">If a large number of physical resources in the primary AZ are faulty due to force majeure, you can attach DR disks in the secondary AZ to DR ECSs and use DR disks to ensure the service availability and continuity.</p>
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<div class="note" id="evs_01_0024__note98481557151510"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0024__evs_01_0020_p883713341981">EVS replication APIs have been deprecated. If you need to use the replication function, see <a href="https://docs.otc.t-systems.com/en-us/usermanual/sdrs/en-us_topic_0125068221.html" target="_blank" rel="noopener noreferrer">Storage Disaster Recovery Service User Guide</a> and <a href="https://docs.otc.t-systems.com/en-us/api/sdrs/sdrs_01_0000.html" target="_blank" rel="noopener noreferrer">Storage Disaster Recovery Service API Reference</a>.</p>
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</div></div>
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</div>
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<div class="section" id="evs_01_0024__section5471394711362"><h4 class="sectiontitle">Procedure</h4><ol id="evs_01_0024__ol4466279511369"><li id="evs_01_0024__li5884586202528"><span>Log in to the management console.</span></li><li id="evs_01_0024__li2935870315121"><span>Click <span><img id="evs_01_0024__en-us_topic_0021738346_image052111582392" src="en-us_image_0237893718.png"></span> in the upper left corner and select the desired region and project.</span></li><li id="evs_01_0024__li10385193165924"><span>Under <strong id="evs_01_0024__b51052945511327">Compute</strong>, click <strong id="evs_01_0024__b61953317211327">Elastic Cloud Server</strong>.</span><p><p id="evs_01_0024__p26357877165924">The <span class="wintitle" id="evs_01_0024__wintitle35894306165924"><b>Elastic Cloud Server</b></span> page is displayed.</p>
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</p></li><li id="evs_01_0024__li23677833165924"><span>Click the name of the production ECS.</span><p><p id="evs_01_0024__p11773906165924">The ECS details page is displayed.</p>
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</p></li><li id="evs_01_0024__li3726148311399"><span>Take note of the production ECS information, including the ECS specifications, details of the EVS disks attached to the ECS, private IP address, and security group, as shown in <a href="#evs_01_0024__table8510771171728">Table 1</a>.</span><p><div class="note" id="evs_01_0024__note30319393143536"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0024__p4439085143536">The listed parameter values are for reference only.</p>
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</div></div>
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<div class="tablenoborder"><a name="evs_01_0024__table8510771171728"></a><a name="table8510771171728"></a><table cellpadding="4" cellspacing="0" summary="" id="evs_01_0024__table8510771171728" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Information to be collected</caption><thead align="left"><tr id="evs_01_0024__row63085598171728"><th align="left" class="cellrowborder" valign="top" width="28.07%" id="mcps1.3.2.2.5.2.2.2.4.1.1"><p id="evs_01_0024__p19829764171728">Production Resource</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="28.449999999999996%" id="mcps1.3.2.2.5.2.2.2.4.1.2"><p id="evs_01_0024__p62707018171728">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="43.480000000000004%" id="mcps1.3.2.2.5.2.2.2.4.1.3"><p id="evs_01_0024__p46103697171728">Example Value</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="evs_01_0024__row12280092171728"><td class="cellrowborder" rowspan="7" valign="top" width="28.07%" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p55163399171728">ECS</p>
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</td>
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<td class="cellrowborder" valign="top" width="28.449999999999996%" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p39050310171728">VPC</p>
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</td>
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<td class="cellrowborder" valign="top" width="43.480000000000004%" headers="mcps1.3.2.2.5.2.2.2.4.1.3 "><p id="evs_01_0024__p8958530171728">vpc-001</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row43745607171756"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p57980369171855">ECS type</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p26696093171924">General-purpose</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row29405508171759"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p58665222171759">Specification</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p54262556171759">s2.xlarge.2</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row133175017182"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p1346087817182">vCPU</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p1658929617182">4 cores</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row17521825171836"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p3210113171836">Memory</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p58692590171836">8 GiB</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row9698958171840"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p15662736171840">Image</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p60722118171840">CentOS 7.2 64bit</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row65993885171950"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p66602652171950">AZ</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p26105695171950">AZ1</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row19169185172116"><td class="cellrowborder" rowspan="5" valign="top" width="28.07%" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p9200184172116">EVS disk</p>
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</td>
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<td class="cellrowborder" valign="top" width="28.449999999999996%" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p7017402172116">Quantity</p>
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</td>
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<td class="cellrowborder" valign="top" width="43.480000000000004%" headers="mcps1.3.2.2.5.2.2.2.4.1.3 "><ul id="evs_01_0024__ul45343600172232"><li id="evs_01_0024__li299388172232">System disk: 1</li><li id="evs_01_0024__li63702710172235">Data disk: 1</li></ul>
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</td>
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</tr>
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<tr id="evs_01_0024__row51002542172137"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p22886168172137">Capacity</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><ul id="evs_01_0024__ul65338516172237"><li id="evs_01_0024__li27612610172237">System disk: 500 GiB</li><li id="evs_01_0024__li56246605172240">Data disk: 2,000 GiB</li></ul>
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</td>
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</tr>
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<tr id="evs_01_0024__row42862631172144"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p41236582172144">Disk type</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><ul id="evs_01_0024__ul4761466817235"><li id="evs_01_0024__li4074554117237">System disk: common I/O</li><li id="evs_01_0024__li3976248917235">Data disk: ultra-high I/O</li></ul>
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</td>
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</tr>
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<tr id="evs_01_0024__row62502604172144"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p64588969172144">Disk sharing</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><ul id="evs_01_0024__ul29341473172329"><li id="evs_01_0024__li39725279172329">System disk: non-shared disk</li><li id="evs_01_0024__li53842873172329">Data disk: non-shared disk</li></ul>
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</td>
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</tr>
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<tr id="evs_01_0024__row18536682172148"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p24360096172148">Device type</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><ul id="evs_01_0024__ul2336131517249"><li id="evs_01_0024__li308164017249">System disk: VBD</li><li id="evs_01_0024__li1887321917249">Data disk: SCSI</li></ul>
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</td>
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</tr>
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<tr id="evs_01_0024__row39298945172148"><td class="cellrowborder" rowspan="3" valign="top" width="28.07%" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p18146190172148">Others</p>
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</td>
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<td class="cellrowborder" valign="top" width="28.449999999999996%" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p60555252172148">Private IP address</p>
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</td>
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<td class="cellrowborder" valign="top" width="43.480000000000004%" headers="mcps1.3.2.2.5.2.2.2.4.1.3 "><p id="evs_01_0024__p6028379172148">192.168.12.2</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row13247577172148"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p60916412172148">Security group</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p35282360172148">Sys-default</p>
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</td>
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</tr>
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<tr id="evs_01_0024__row12460051172148"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.1 "><p id="evs_01_0024__p23680882172148">Virtual IP address</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.2.2.4.1.2 "><p id="evs_01_0024__p39103261172148">192.168.12.23</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</p></li><li id="evs_01_0024__li22360873114843"><span>Create the DR ECS using the information of the production ECS.</span><p><p id="evs_01_0024__p5854856511508">For details, see <strong id="evs_01_0024__b84235270618447">Creating an ECS</strong> in the <em id="evs_01_0024__i842352697145957">Elastic Cloud Server User Guide</em>.</p>
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<div class="notice" id="evs_01_0024__note29752614151018"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="evs_01_0024__p66446940151018">Check the parameter values carefully and ensure that information of the DR ECS and production ECS is consistent.</p>
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</div></div>
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</p></li><li id="evs_01_0024__li11182687114957"><span>After the DR ECS has been created, locate the DR ECS and stop it.</span><p><p id="evs_01_0024__p13924102142121">Stopping the DR ECS prevents it from being incorrectly used.</p>
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<div class="note" id="evs_01_0024__note19907185417712"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0024__p29071654171">When the DR ECS is not stopped and its system disk is used to create an EVS replication pair, the DR ECS status will change to <strong id="evs_01_0024__b84235270616422">REBUILDING</strong>. In this state, you cannot stop the DR ECS, detach EVS disks from it, or expand its EVS disks.</p>
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</div></div>
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</p></li></ol>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="evs_01_0023.html">Managing EVS Replication (Deprecated)</a></div>
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</div>
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</div>
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