Interesting... Fired up 3 nodes... two ended up waiting for cluster quorum at the fence_tool startup, one failed as before. Unblocked the quorum and still, only one node is now in the cluster. Log on one node that has the same problem; # tail /var/log/messages Oct 18 14:00:09 cweb93 kernel: CMAN: Waiting to join or form a Linux-cluster Oct 18 14:00:10 cweb93 kernel: CMAN: sending membership request Oct 18 14:00:10 cweb93 kernel: CMAN: Cluster membership rejected Oct 18 14:00:10 cweb93 kernel: CMAN: Waiting to join or form a Linux-cluster Oct 18 14:00:10 cweb93 ccsd[2411]: Connected to cluster infrastruture via: CMAN/ SM Plugin v1.1.7.1 Oct 18 14:00:10 cweb93 ccsd[2411]: Initial status:: Inquorate Oct 18 14:00:14 cweb93 kernel: CMAN: sending membership request Oct 18 14:00:14 cweb93 kernel: CMAN: Cluster membership rejected Oct 18 14:00:14 cweb93 ccsd[2411]: Cluster manager shutdown. Attemping to recon nect... Oct 18 14:00:15 cweb93 clvmd: Can't open cluster manager socket: Network is down -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster