Hello, I'm working on a 3 node cluster project. I didnt want to go to 2 node cluster , I'd rather3 nodes for the ressources, and to have a quorum. My 3 machines are identical.
Each machine exports a disk to the cluster via iscsi (it's to simulate a SAN on my test platform). For the moment all is running : dlm + clvm (+ cmirror) + gfs2 I now want to add the fencing to my cluster (for the moment it's disabled in the cluster config). My problem is to choose the right fencing/stonith. My questions : - As I have a quorum , do I need fencing ? - I can't use an ipmi/drac or so fencing agent, my cluster is on a very low-cost test platform it hasn't remote reboot/poweroff access. - Maybe I could use the fence_scsi, but how to use it on 3 nodes ? Where should I place the fencing disk ? If the node exporting the disk fails, there is no more fencing. - Any other advice will be helpful :) Regards, Nicolas.
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