You said that quorum is (expected_votes/2)+1 , which means 7/2=3.5+1= 4.5... is it rounded up or down?
2007/8/31, Patrick Caulfield <[EMAIL PROTECTED]>: > > Claudio Tassini wrote: > > Hi all, > > > > this could sound quite obvious but I really can't find a reference guide > > to cluster.conf parameters. What is the exact meaning of the > > expected_votes cman attribute ? Is it the total number of votes on > > which cman calculates the quorum needing of a member or is it the actual > > number of votes needed by a member to boot? > > expected_votes is the total number of votes in a fully functional cluster. > Quorum is calculated from this as (half the number of expected_votes)+1. > when > the cluster has fewer than quorum votes then services will stall. > > > > I'll try to explain: 4-nodes cluster. 1 vote per node. 1 quorum disk > > with 3 votes. expected_votes set to 7 as read in the cluster faq. The > > faq says that every single node should be able to remain in the cluster > > as long as it can reach the quorum, with a total vote count of 4 (3 for > > the quorum, 1 for the node itself), which is claimed to be enough with > > an expected_votes of 7. This is why I'm quite confused... if > > expected_votes is 7, doesn't this mean that the "1 node+qdisk" vote > > count should be 7 to prevent quorum being dissolved? > > So, in your system expected_votes is 7, quorum is 4. so any 1 node + the > quorum > disk will be a valid cluster. Which sounds sensible :) > > Patrick > > -- > Linux-cluster mailing list > Linux-cluster@redhat.com > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Claudio Tassini
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