I wanted to check from your experience what would be the best approach to change the IP addresses of the engine and hosts on the management network. I have a 3 node cluster (in production) on ovirt 4.1 with engine and hosts resolving through /etc/hosts files on hosts and engine. The hosts have been added using their fqdn (host.domain) and not IP address, so what I will be changing is their IP and their domain part at /etc/hosts and to add them with their new domain at engine.