Hi With a HA pair node1 /node2 in mutual takeover : node1 fails, so node2 is retreiving services normally from node1. node1 reboots CS4 is re-started on node1 after reboot. But as soon as it is re-started, it happens that node2 fence again immediately the node1 . Logs identify the "Missing too many heart-beats" cause of fencing. It happens 1 time on 10 tries, not systematically. Is there an already known problem around this ? Thanks Alain Moullé -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster