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>
24 lines
4.2 KiB
HTML
24 lines
4.2 KiB
HTML
<a name="evs_01_0032"></a><a name="evs_01_0032"></a>
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<h1 class="topictitle1">Reprotection (Deprecated)</h1>
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<div id="body1508295804298"><div class="section" id="evs_01_0032__section5572733817211"><h4 class="sectiontitle">Scenarios</h4><p id="evs_01_0032__p6121985021913">When the production servers and disks in the primary AZ become faulty due to force majeure and a failover has been performed, enable the DR servers and disks to provide services. After the fault in the faulty AZ has been restored, users can make API calls to reprotect a replication consistency group, that is, to enable the restored resources in the faulty AZ to function as DR servers and DR disks.</p>
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<div class="note" id="evs_01_0032__note98481557151510"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0032__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 class="section" id="evs_01_0032__section3159922995753"><h4 class="sectiontitle">Prerequisites</h4><ul id="evs_01_0032__ul2330520695833"><li id="evs_01_0032__li5337222795717">A failover for the replication consistency group has been performed.</li><li id="evs_01_0032__li693959595833">The faulty AZ has been restored.</li><li id="evs_01_0032__li49773260112629">The replication consistency group status is <strong id="evs_01_0032__b842352706195723">available</strong>.</li><li id="evs_01_0032__li1058799695717">The restored production server has been stopped.</li></ul>
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</div>
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<div class="section" id="evs_01_0032__section55139435172113"><h4 class="sectiontitle">Procedure</h4><ol id="evs_01_0032__ol25404739172247"><li id="evs_01_0032__li8335956162545"><span>Perform the reprotection for the replication consistency group to synchronize the disk data of the DR servers to the servers in the faulty AZ.</span><p><p id="evs_01_0032__p15163654162552">For details, see <strong id="evs_01_0032__b84235270619933">Reprotecting a Replication Consistency Group</strong> in the <em id="evs_01_0032__i84235269719946">Elastic Volume Service API Reference</em>.</p>
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</p></li><li id="evs_01_0032__li27331409203711"><span>Query the details about the replication consistency group.</span><p><p id="evs_01_0032__p14492955205026">For details, see <strong id="evs_01_0032__b1950843280">Querying Details About a Replication Consistency Group</strong> in the <em id="evs_01_0032__i1710164440">Elastic Volume Service API Reference</em>.</p>
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<p id="evs_01_0032__p233784010637">After the request has been delivered, the replication status of the replication consistency group changes to <strong id="evs_01_0032__b842352706195913">copying</strong>. Once the replication status changes to <strong id="evs_01_0032__b842352706195953">active</strong>, the data synchronization is complete.</p>
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<div class="note" id="evs_01_0032__note30248056211815"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0032__p3797050211815">The time required for the data synchronization within a replication consistency group varies depending on the number of EVS replication pairs in the group, EVS disk capacity, and amount of differential data generated after a primary AZ fault occurred. Normally, the data synchronization of a reprotection takes a relative long period of time. Please wait patiently.</p>
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</div></div>
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</p></li><li id="evs_01_0032__li27276890162610"><span>(Optional) If the services need to be migrated back to the restored primary AZ, you need to perform a planned migration. For details, see <a href="evs_01_0030.html">Planned Migration (Deprecated)</a>.</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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