[Linux-cluster] Multipathed quorum disk

Claudio Tassini claudio.tassini at gmail.com
Sat Sep 1 00:57:48 UTC 2007

I recently upgraded a 2-nodes cluster adding two more nodes. I would like a
single node to remain in cluster even if the other three are out of service,
so I'm trying to add a quorum disk to the cluster.

The problem is that the quorum disk is a LUN in a shared storage which has
not the same device name through all the cluster nodes. Moreover, we use
device-mapper AND lvm. I could resolve the problem using an lvm logical
volume, because it would always have the same name and recognize the
underlying "dm" or "sd" device name even if it changes across a reboot, but
I've read that it's not advisable to use a logical volume as quorum device.

Any idea?

Claudio Tassini
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