HowTo setup a Quorum Disk under Red HatAug 25, 2009, 23:29 (0 Talkback[s])
(Other stories by Allen Sanabria)
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"Since if I still have 1 node available, the node should still be able to use the GFS2 mount. So I did some research about this quorum disk and what it can do for me. Let me tell you, this was exactly what I was looking for. 1st let me start out my explaining what a quorum is ( relating to clustering ). A quorum is the minimal number of votes that is needed in a cluster, usually the majority. So if you have 3 nodes in a cluster, that means you have a total of 3 votes in the cluster and you will need a minimum of 2 votes to remain in a quorate state. Which means you can lose 1 node in the cluster and the other nodes are still functional. But if you lose 2 nodes, your quorum will be dissolved. Which means even though your GFS2 file system is still mounted on your final node, it will not be accessible to you.
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