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@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
