forked from docs/doc-exports
Zaoxu, Li
305c41bb57
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Zaoxu, Li <lizaoxu@huawei.com> Co-committed-by: Zaoxu, Li <lizaoxu@huawei.com>
23 lines
3.9 KiB
HTML
23 lines
3.9 KiB
HTML
<a name="evs_01_0030"></a><a name="evs_01_0030"></a>
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<h1 class="topictitle1">Planned Migration (Deprecated)</h1>
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<div id="body1508295804297"><div class="section" id="evs_01_0030__section5572733817211"><h4 class="sectiontitle">Scenarios</h4><p id="evs_01_0030__p6121985021913">Production servers and production disks belong to the primary AZ, and DR servers and DR disks belong to the secondary AZ. Users can make API calls to perform a planned migration, for example, perform a primary/secondary AZ switchover for the replication consistency group and enable the servers and disks in the secondary AZ.</p>
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<div class="note" id="evs_01_0030__note98481557151510"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0030__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_0030__section3033620895717"><h4 class="sectiontitle">Prerequisites</h4><ul id="evs_01_0030__ul5232133095717"><li id="evs_01_0030__li5337222795717">The production server status is normal, and the deployed services are running properly.</li><li id="evs_01_0030__li1058799695717">The target production servers have been temporarily stopped.</li><li id="evs_01_0030__li2818310295717">The replication status of the replication consistency group is <strong id="evs_01_0030__b842352706191659">active</strong>, which means that data synchronization in all EVS replication pairs of the replication consistency group is complete.</li></ul>
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</div>
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<div class="section" id="evs_01_0030__section55139435172113"><h4 class="sectiontitle">Procedure</h4><ol id="evs_01_0030__ol25404739172247"><li id="evs_01_0030__li1149065320371"><span>Perform a primary/secondary AZ switchover for the replication consistency group.</span><p><p id="evs_01_0030__p1106178211350">For details, see <strong id="evs_01_0030__b84235270619933">Performing a Primary/Secondary Switchover for a Replication Consistency Group</strong> in the <em id="evs_01_0030__i84235269719946">Elastic Volume Service API Reference</em>.</p>
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<div class="note" id="evs_01_0030__note3765918721375"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0030__p13395372213712">Performing a primary/secondary switchover for a replication consistency group takes a relative long period of time, and it takes about 10 seconds for the system to respond the request.</p>
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</div></div>
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</p></li><li id="evs_01_0030__li19545915358"><span>If Elastic Load Balancing (ELB) or EIPs are used, unbind the ELB or EIPs with the production servers and bind them to the DR servers.</span><p><ul id="evs_01_0030__ul50068430171458"><li id="evs_01_0030__li7836699171458">For details about ELB, see <strong id="evs_01_0030__b842352706184653">Backend Server (Enhanced Load Balancer)</strong> in the <em id="evs_01_0030__i842352697184659">Elastic Load Balancing User Guide</em>.</li><li id="evs_01_0030__li4161371317151">For details about EIPs, see <strong id="evs_01_0030__b84235270693653">Elastic IP Address</strong> in the <em id="evs_01_0030__i842352697203114">Virtual Private Cloud User Guide</em>.</li></ul>
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</p></li><li id="evs_01_0030__li5498361494934"><span>Verify that the DR server OSs can be normally started, deployed services are available, and the data is complete.</span></li></ol>
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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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