Problem:
The problem is that when performing an HA failover from server A to server B,
a DRBD resource is sometimes not shut down properly on server A. Several
attempts are made to stop the DRBD resource, but finally it gives up and the
server is rebooted. The failover to server B works properly; B becomes the
Active server. After the reboot, server A comes up properly as the Standby
server.
The problem is intermittent. Most HA failovers work as expected (server A does
not reboot).
When the problem does occur, the following lines are logged in
/var/log/messages and displayed on the OOBM:
drbd0: State change failed: Device is held open by someone
drbd0: state = { cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate r--- }
drbd0: wanted = { cs:Connected st:Secondary/Secondary ds:UpToDate/UpToDate
r--- }
Heartbeat: 2.1.4
Drbd: 8.0.11
kernel-module-drbd: 2.6.18
lvm2: 2.02.42-5
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