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<span style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Dear Support,</span><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">I would like to introduce myself,Ravi,working as DBA,located in Singapore.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">We recently hit an issue with DRBD after upgrade kernel,unable to mount DRBD.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Kindly refer below details of our env.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">OS-Rhel 6.2,kernel 2.6.32-220</div><div style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Kernel Upgrade to  <span style="font-size:12.8px">2.6.32-754</span></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Current DRBD version-8.3.12</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Based on the above info,can kindly shed some light?.Please advice any compatibilty issue with Kernel update?.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">After switch back to original kernel version,we were able to bring up DRBD.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Would really appreciate your inputs.</div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Following is the DRBD error log.</div><div style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><br></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial"><div dir="auto" style="font-size:12.8px">ResourceManager[8458]:  2018/07/04_15:12:15 info: Running /etc/ha.d/resource.d/drbddisk drbd0 start</div><div dir="auto" style="font-size:12.8px">ResourceManager[8458]:  2018/07/04_15:12:20 ERROR: Return code 1 from /etc/ha.d/resource.d/drbddisk</div><div dir="auto" style="font-size:12.8px">ResourceManager[8458]:  2018/07/04_15:12:20 CRIT: Giving up resources due to failure of drbddisk::drbd0</div><div dir="auto" style="font-size:12.8px">ResourceManager[8458]:  2018/07/04_15:12:20 info: Releasing resource group: pscsggpapp1.mscs.intra 10.81.162.207 drbddisk::drbd0 Filesystem::</div><div dir="auto" style="font-size:12.8px">sourceManager[4071]:  2018/07/04_15:42:15 info: Running /etc/init.d/gprism_02_httpd  stop</div><div dir="auto" style="font-size:12.8px">ResourceManager[4071]:  2018/07/04_15:42:16 info: Running /etc/ha.d/resource.d/Filesystem /dev/drbd0 /drbd ext3 stop</div><div dir="auto" style="font-size:12.8px">Filesystem[4516]:       2018/07/04_15:42:16 WARNING: Couldn&#39;t find device [/dev/drbd0]. Expected /dev/??? to exist</div><div dir="auto" style="font-size:12.8px">Filesystem[4516]:       2018/07/04_15:42:16 INFO: Running stop for /dev/drbd0 on /drbd</div><div dir="auto" style="font-size:12.8px">Filesystem[4508]:       2018/07/04_15:42:16 INFO:  Success</div><div><br></div><div><span style="font-size:12.8px">Regards</span><br></div></div><div dir="auto" style="font-size:12.8px;text-decoration-style:initial;text-decoration-color:initial">Ravi</div>

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