5.2.1 Failure of One Node

If separate power sources are used on the nodes and the multihost disk expansion units, and you lose power to only one of the nodes, the other node detects the failure and initiates a takeover.

When power is restored to the node that failed, it reboots. You must rejoin the cluster by using the scadmin startnode command. Then perform a manual switchover by using the haswitch(1M) command to restore the default logical host ownership.