10-24-2012 05:19 PM
I dont think there is a solution to this, becuse it would violate HA, but I need to ask the question.
Prerequisite: HA Setup is up and running.
Steps:
1). Unplug the heartbeat cable. (eth1)
2). Unplug/failover the primary system.
Secondary system does not come up without manually enabling the autodisable on
the faulted primary.
They want the secondary system to come up. Automaticly.
Is this possable? is it recomemned?
10-24-2012 10:24 PM
They want the secondary system to come up. Automaticly.
WHY??
What if primary is up and running, still having all clustered applications up and running?
Have you ever seen 'split-brain'? Not pretty.
Data corruption that can only be fixed by restoring all data.
Autodisable is a protection mechanism. Understand that it is there to protect your data.
Step 1 suggests that cluster has one heartbeat only. VCS needs two heartbeats.
Please read up in VCS Admin Guide :
About communications, membership, and data protection in the cluster
See these topics:
The solution here is to follow the 'best practices for cluster communications', e.g:
10-24-2012 10:34 PM
does customer have Fencing enabled?