SBD Stonith fails silently (OPENAIS HEARTBEAT CLUSTER)

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Environment

SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 10 Service Pack 2

Situation

Setup of cluster is successful. Resources and SBD STONITH are configured. Despite everything seemingly being ok the cluster goes passive the moment a node fails.

Resolution

Heartbeat as well as openais select the Name of the node via

hostname

and use it case-sensitive. During the creation of a SBD partition the hostname is written to the slots in-case-sensitive.

So in a setup with Server1 and Server2 as 2 nodes of a cluster, the slots on the partition are named

server1
server2

during fencing, the cluster tries to issue a reset to a slot according to hostname, for example "Server2",
but as the slot is named "server2" this fails.

The solution at the moment is not to use uppercase in hostname.

Disclaimer

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