Rich Edelman wrote: > Hi all. > > I've got a 2 node FC4 system here, connected via a Brocade FC switch to > FC SAN. I've followed usage.txt to a T, but seem to have some fencing > problems. > > What happens is if one of the 2 nodes loses network connectivity, that > node immediately gets fenced by the remaining node, which is all fine > and good. The problem here is the fenced node (the one without network > connectivity) starts trying to fence the remaining node, and when > network connectivity is restored, succeeds in fencing the other node. > Now both my nodes are fenced. And not only that, but I have the 'split > brain' scenario, where each node thinks it is the only member of a > similarly named cluster. > > Any ideas how to fix this? > For a start you need to set the 2-node option to cman in the /etc/cluster/cluster.conf file. I think that 2-node option only works with power-switch fencing. It relies on the fact that the two nodes will race to fence each other and only the first one suceeds because the second is then dead. -- patrick -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster
