>By the way, which is the value of timeout on Heart-beat >> check ? >> and how many times does it try to get the heart-beat >> in case of timeout ? See /proc/cluster/config/cman/hello_timer & /proc/cluster/config/cman/deadnode_timeout The times are all in seconds and you can change them by writing values into those files. Hi, I 've checked those files and they are all empty , whereas the CS4 is working fine ... is-it normal ? Thanks Alain Moullé -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster