We have a 2012 SQL AlwaysOn availability group(2-node) running on top of 2008 R2 Enterprise servers. Both of these servers need to be migrated to a new network. This is an extremely critical SQL database that we would prefer to keep online. The production network will be a quick failover(vmotion-5 seconds) to the same subnet. The cluster heartbeat will need to be migrated to an entirely new subnet. So we just basically need to figure out how we can move servers in an AlwaysOn AG to a new network without them failing over because of a quick network disruption, and we also need to move the cluster heartbeat to an entirely new subnet(re-ip those NICs).
Even ideas that could help point in the right direction, are greatly appreciated.
Dave