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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wow! Those are some old versions!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Just “drbdadm disconnect all” on the Primary node before the maintenance and “drbdadm connect all” afterwards. All else is magic!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dan<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> drbd-user-bounces@lists.linbit.com [mailto:drbd-user-bounces@lists.linbit.com]
<b>On Behalf Of </b>Gabriel Sosa<br>
<b>Sent:</b> Tuesday, September 24, 2013 11:08 AM<br>
<b>To:</b> drbd-user@lists.linbit.com<br>
<b>Subject:</b> [DRBD-user] Fwd: how to place secondary node in maintenance mode<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">We have a pretty standard setup<o:p></o:p></p>
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<p class="MsoNormal">MASTER <---> SLAVE (STANDBY)<br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">both nodes are in sync without much issue now but during this week our DC will perform some maintenance tasks that might incur in some connectivity issues between both nodes.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">How can put the slave node in maintenance (or any other mode) in order to avoid any split brain situation?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I've been reading [1] and [2] but I can't find a clear answer to this.<o:p></o:p></p>
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<p class="MsoNormal">should I just take down the service on the SLAVE node performing a *service drbd stop* or instead disable the resource using *drbdadm down resourcename*<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">versions:<o:p></o:p></p>
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<p class="MsoNormal">MASTER -> version: 8.0.16 (api:86/proto:86)<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">SLAVE -> version: 8.3.15 (api:88/proto:86-97)<o:p></o:p></p>
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<p class="MsoNormal">Thanks<o:p></o:p></p>
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<p class="MsoNormal"><br>
[1] <a href="http://www.drbd.org/users-guide/ch-admin.html" target="_blank">http://www.drbd.org/users-guide/ch-admin.html</a><br>
[2] <a href="http://www.geekpeek.net/drbd-management-command-usage/" target="_blank">
http://www.geekpeek.net/drbd-management-command-usage/</a><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><br>
-- <br>
Gabriel Sosa<br>
Sometimes the questions are complicated and the answers are simple. -- Dr. Seuss <o:p>
</o:p></p>
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