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Reviewed-by: Goncharov, Artem <artem.goncharov@t-systems.com> Co-authored-by: gtema <artem.goncharov@gmail.com> Co-committed-by: gtema <artem.goncharov@gmail.com>
13 lines
2.9 KiB
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13 lines
2.9 KiB
HTML
<a name="sdrs_faq_0004"></a><a name="sdrs_faq_0004"></a>
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<h1 class="topictitle1">Why NICs of DR Site Servers Are Not Displayed After I Perform a Failover?</h1>
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<div id="body1566975392276"><div class="p" id="sdrs_faq_0004__p8060118">SDRS performs planned failovers or failovers for protection groups. After a planned failover or failover, the production site and DR site exchange. When the production site is functional, users can perform a planned failover according to plans. When a fault occurs at the production site, users need to perform a failover.<ul id="sdrs_faq_0004__ul14861146191915"><li id="sdrs_faq_0004__li144864466196">During a planned failover, NICs of the production site <span id="sdrs_faq_0004__text070286172120">server</span><span id="sdrs_faq_0004__text270214615217"></span>s and DR site <span id="sdrs_faq_0004__text1183920127217">server</span><span id="sdrs_faq_0004__text128392125211"></span>s will exchange. In this way, <span id="sdrs_faq_0004__text19728277219">server</span><span id="sdrs_faq_0004__text372162732117"></span>s can be accessed using the same IP addresses and MAC addresses after the planned failover.</li><li id="sdrs_faq_0004__li109855133207">During a failover, production site <span id="sdrs_faq_0004__text3418100112417">server</span><span id="sdrs_faq_0004__text94188052411"></span>s do not work properly, NICs of the production site <span id="sdrs_faq_0004__text195478305282">server</span><span id="sdrs_faq_0004__text554973019281"></span>s will be migrated to the DR site <span id="sdrs_faq_0004__text1184194112813">server</span><span id="sdrs_faq_0004__text1518714419285"></span>s. The primary NICs of the DR site <span id="sdrs_faq_0004__text33277882917">server</span><span id="sdrs_faq_0004__text5333158102917"></span>s will enter the to-be-used state. Therefore, after a failover, the original production site <span id="sdrs_faq_0004__text18713155258">server</span><span id="sdrs_faq_0004__text67139542516"></span>s will not have NICs. When users perform reprotection for the protection group after the original production site <span id="sdrs_faq_0004__text38282112311">server</span><span id="sdrs_faq_0004__text18352173110"></span>s restore, the primary NICs in the to-be-used state detached from the original DR site <span id="sdrs_faq_0004__text1945636192518">server</span><span id="sdrs_faq_0004__text139451936142518"></span>s will be attached to the original production site <span id="sdrs_faq_0004__text134395017322">server</span><span id="sdrs_faq_0004__text1246165023216"></span>s. Then, the NICs of the production site <span id="sdrs_faq_0004__text195024416332">server</span><span id="sdrs_faq_0004__text1650934183317"></span>s and DR site <span id="sdrs_faq_0004__text154781782334">server</span><span id="sdrs_faq_0004__text549115811332"></span>s are exchanged.</li></ul>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="sdrs_06_0400.html">FAQs</a></div>
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