Thanks Jim, it was effectively the problem : the second step about managing the fence for each node was missing (but there is nothing in documentation about this step and dialog boxes ...) Another problem/question: when you have finished the 3 nodes cluster configuration, and Save the file in /etc/cluster/cluster.conf on local node, the Icon "Send to Cluster" is not available because the cs4 is not active at the moment. But with three nodes, even if you try to start the cs4 on this local node (where I've done the configuration) , it can't start alone because the cluster is not quorate ... and you can't start cman on other nodes, it seems that the start is failed because of no cluster.conf currently on the node. So, do we have to do manually the mkdir /etc/cluster on both other nodes, and scp of cluster.conf towards both nodes ? Or is there another tip via GUI to start the cs4 on three nodes despite two nodes have not yet any cluster.conf available ? Thanks Alain Moullé -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
