Hello everybody, I am having problems understanding split brain situations. If I understand correctly when a split brain situation happens the larger cluster fragment have quorum and these cluster members can decide to fence off resources or to stonith the cluster members which are not seen.
I have read that it is not sane to use a 2 node cluster, because in split brain situations no one has quorum and the no-quorum-policy decides how to deal with this. But what if I have a 3 node cluster and the switch delivering the heartbeat between those members dies. Then again I will have three separate clusters each consisting of only 1 node and none having quorum. If I think of a split brain would it not be the best action to merge all resources to the DC and the other node(s) will shut down? Is this not possible to configure? Thanks for your help Kolja Geschäftsführung: Dr. Michael Fischer, Reinhard Eisebitt Amtsgericht Köln HRB 32356 Steuer-Nr.: 217/5717/0536 Ust.Id.-Nr.: DE 204051920 -- This email transmission and any documents, files or previous email messages attached to it may contain information that is confidential or legally privileged. If you are not the intended recipient or a person responsible for delivering this transmission to the intended recipient, you are hereby notified that any disclosure, copying, printing, distribution or use of this transmission is strictly prohibited. If you have received this transmission in error, please immediately notify the sender by telephone or return email and delete the original transmission and its attachments without reading or saving in any manner.
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