Random SLES11-HAE/CLVMD notes

Random notes … It’s nice to have manuals, but maybe these will help someone.

• Hmn, you should probably add rules to keep the stonith service for a node off of it. It’ll probably also save time if you set it’s failcount low.
• stonith is fun. BOOM, HEADSHOT!
• For some reason, monitoring a clvmd volume group via the ocf:heartbeat:LVM ra won’t work until you have both volume groups and logical volumes, and you restart openais. Until I randomly restarted openais to change the default debug setting, I was getting messages that the service could not be started anywhere.
• ha_logd doesn’t seem to start by default anywhere. Starting it will probably help you debug the internals of the cluster a bit better.
• If you have a two-node cluster, don’t forget to set configure property no-quorum-policy=ignore in the CLI so that your cluster doesn’t hang when it loses one of it’s two nodes. This doesn’t seem to be documented except on the pacemaker mailing list.