On Tue, 2008-05-06 at 14:37 -0600, Gary Romo wrote: > > Is there a command that you can run to test/veryify that fencing is > working properly? > Or that it is part of the fence if you will? > I realize that the primary focus of the fence is to shut off the other > server(s). > However, when I have a cluster up, how can I determine that all of my > nodes are properly fenced? I'm not sure exactly how to answer the question. Fencing is used to cut a node off; if all nodes are fenced, no one can access shared storage ;) * For testing whether or not fencing works, stop the cluster software on all the nodes and run 'fence_node <nodename>' (where nodename is a host you're not working on). * For testing whether or not a node will be fenced as a matter of recovery, try 'cman_tool services'. If that node's ID isn't in the "fence" section, it will not be fenced if it fails. (Note that mounting a GFS file system will fail if the node is not a part of the "fence" service.) Let me know if this answers your question. -- Lon -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
