Figure: Live Upgrade process illustrates an example of an upgrade of Veritas products from 5.1 SP1 to 6.0, and the operating system from Solaris 9 to Solaris 10.

Some service groups (failover and parallel) may be online in this cluster and they are not affected by the Live Upgrade process. The only downtime experienced is when the server is rebooted to boot into the alternate boot disk.