Hello, hopefully someone has ran into this and it's a quick fix. I'm using a vanilla 2.6.9 kernel and the newest (as of tonite) cvs branch from -rRHEL4. My sequence is to startup ccsd on both nodes, and then I try to have both of them join (with a brief wait before I have the 2nd one try). Here's what I get from the cman_tool's view of the nodes. phung # cman_tool nodes Node Votes Exp Sts Name 3 1 1 J blade03 4 1 1 M blade04 and in /var/log/messages, I see this: CMAN: sending membership request followed by many: last message repeated 7 times In addition I ran a tcpdump, and there seem to be UDP packets flying around from node to node, using port 6809, so the network seems fine. How would I debug this further? What kinds of tools are people using to debug their config/setup? here's my config. <?xml version="1.0"?> <cluster name="blade_cluster" config_version="3"> <fencedevices> <fencedevice name="blade_san" agent="fence_manual"/> </fencedevices> <fence_daemon clean_start="0"> </fence_daemon> <cman two_node="1" expected_votes="1"> <multicast addr="224.0.0.1"/> </cman> <clusternodes> <clusternode name="blade03" nodeid="3" votes="1"> <multicast addr="224.0.0.1" interface="eth0"/> <fence> <method name="human"> <device name="last_resort" ipaddr="blade03"/> </method> </fence> </clusternode> <clusternode name="blade04" nodeid="4" votes="1"> <multicast addr="224.0.0.1" interface="eth0"/> <fence> <method name="human"> <device name="last_resort" ipaddr="blade04"/> </method> </fence> </clusternode> </clusternodes> </cluster> regards, Dan -- -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster