So I've read about upgrading to 2012 on a dual instance active/active cluster. They say it is best to failover 1 instance to the other node and then do both instances on the passive node. THEN to failover the 2 active to the passive. This caused us an issue when upgrading from 2005 to 2008R2. Is it different in 2012? Is there a difference between "move services to another node" and "simulate failover"? Testing in about an hour in a sandbox, but I'd like feedback from others.