Hi guys,<div><br></div><div>we are using drbd 8.3.13 on our 2 linux server to keep data of the oer MySQL server.</div><div><br></div><div>corosync and pacemaker ensure that we have a virtuel IP running and that our DB is always up on one of those nodes.</div>
<div>During a failover test we noted that when we put the Master node in standy </div><div>( crm node standby )</div><div><br></div><div>all services switch to other node but DRBD goes in "Unconfigured state".</div>
<div>Below the situation before standby:</div><div><br></div><div><div><i>crm_mon -V1</i></div><div><i>============</i></div><div><i>Last updated: Fri Feb 22 11:20:41 2013</i></div><div><i>Last change: Thu Feb 21 17:44:58 2013 via crm_attribute on FRCVD2047</i></div>
<div><i>Stack: openais</i></div><div><i>Current DC: FRCVD2046 - partition with quorum</i></div><div><i>Version: 1.1.7-6.el6-148fccfd5985c5590cc601123c6c16e966b85d14</i></div><div><i>2 Nodes configured, 2 expected votes</i></div>
<div><i>5 Resources configured.</i></div><div><i>============</i></div><div><i><br></i></div><div><i>Online: [ FRCVD2046 FRCVD2047 ]</i></div><div><i><br></i></div><div><i> p_IPaddr2_zenoss_cluster_ip (ocf::heartbeat:IPaddr2): Started FRCVD2046</i></div>
<div><i> p_zends_fs (ocf::heartbeat:Filesystem): Started FRCVD2046</i></div><div><i> p_zends_service (lsb:zends): Started FRCVD2046</i></div><div><i> Master/Slave Set: ms_zends_drbd [p_zends_drbd]</i></div>
<div><i> Masters: [ FRCVD2046 ]</i></div><div><i> Slaves: [ FRCVD2047 ]</i></div></div><div><i><br></i></div><div>Now the situation after "crm node standby":</div><div><br></div><div><div><i>============</i></div>
<div><i>Last updated: Fri Feb 22 11:20:59 2013</i></div><div><i>Last change: Fri Feb 22 11:20:53 2013 via crm_attribute on FRCVD2046</i></div><div><i>Stack: openais</i></div><div><i>Current DC: FRCVD2046 - partition with quorum</i></div>
<div><i>Version: 1.1.7-6.el6-148fccfd5985c5590cc601123c6c16e966b85d14</i></div><div><i>2 Nodes configured, 2 expected votes</i></div><div><i>5 Resources configured.</i></div><div><i>============</i></div><div><i><br></i></div>
<div><i>Node FRCVD2046: standby</i></div><div><i>Online: [ FRCVD2047 ]</i></div><div><i><br></i></div><div><i>p_IPaddr2_zenoss_cluster_ip (ocf::heartbeat:IPaddr2): Started FRCVD2047</i></div><div><i>p_zends_fs (ocf::heartbeat:Filesystem): Started FRCVD2047</i></div>
<div><i>p_zends_service (lsb:zends): Started FRCVD2047</i></div><div><i> Master/Slave Set: ms_zends_drbd [p_zends_drbd]</i></div><div><i> Masters: [ FRCVD2047 ]</i></div><div><i> Stopped: [ p_zends_drbd:1 ]</i></div>
</div><div><i><br></i></div><div>And now DRBD situation on "old" Master node ( <i>FRCVD2046 ):</i></div><div><i><br></i></div><div><i><div>service drbd status</div><div>drbd driver loaded OK; device status:</div>
<div>version: 8.3.13 (api:88/proto:86-96)</div><div>GIT-hash: 83ca112086600faacab2f157bc5a9324f7bd7f77 build by dag@Build64R6, 2012-09-04 12:06:10</div><div>m:res cs ro ds p mounted fstype</div><div>
0:zendsdata Unconfigured</div></i></div><div><br></div><div>Now if i run a DRBD service reload I have this scenario:</div><div><br></div><div><div><i>service drbd reload</i></div><div><i>Reloading DRBD configuration: .</i></div>
<div><i>[root@FRCVD2046 davide.lonero]# service drbd status</i></div><div><i>drbd driver loaded OK; device status:</i></div><div><i>version: 8.3.13 (api:88/proto:86-96)</i></div><div><i>GIT-hash: 83ca112086600faacab2f157bc5a9324f7bd7f77 build by dag@Build64R6, 2012-09-04 12:06:10</i></div>
<div><i>m:res cs ro ds p mounted fstype</i></div><div><i>0:zendsdata Connected Secondary/Primary UpToDate/UpToDate C</i></div></div><div><i><br></i></div><div>The question are:</div>
<div><br></div><div>- Why this happen?</div><div>- Is there a way to workaround this issue?</div><div>- is there a way to "force" cluster and/or drbd to reload service after a stop procedure?</div><div><br></div>
<div>Thanks in advance to everyone can save me...</div><div><br></div><div>Simone </div><div><br></div><div><br></div>