Remove a cluster node
Move all virtual machines out of the node, just use the Central Web-based Management 2.0 to migrate or delete all VM´s. Make sure you have no local backups you want to keep, or save them accordingly.
Log in to one remaining node via ssh. Issue a pvecm nodes command to identify the nodeID:
Node Sts Inc Joined Name
1 M 156 2011-09-05 10:39:09 hp1
2 M 156 2011-09-05 10:39:09 hp2
3 M 168 2011-09-05 11:24:12 hp4
4 M 160 2011-09-05 10:40:27 hp3
Issue the delete command (here deleting node hp2):
pvecm delnode hp2
If the operation succeeds no output is returned, just check the node list again with 'pvecm nodes' (or just 'pvecm n').
Does the node need to be powered on to remove it? or powered off first?ATTENTION: you need to power off the removed node, and make sure that it will not power on again.