[Pacemaker] Lustre and Multiple Mount Protection

[Michael Schwartzkopff]

Hi,

The Lustre Filesystem uses a feature called Multiple Mount Protection to make 
sure that one device is really only mounted by one node.

My question now: Is this feature really needed in a pacemaker cluster?

In a pacemaker cluster with correctly enables STONITH the cluster manager 
takes care that the resource is only mounted on one node, isn't it? At least 
in my understanding it should. Only after getting the positive feedback that 
the resource was stopped on the other node or the other node was fenced 
pacemaker starts the resource on the second node, or?

Greetings,


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Dr. Michael Schwartzkopff
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