Failback moves the primary companion’s shared disks from the secondary node back to the primary node and starts the primary companion on the primary node. A failback is a planned event. To fail back to the primary companion:
Issue sp_companion from the secondary companion to verify that it is in failover mode.
The high availability system automatically restarts
the primary companion.
Issue the following from the secondary companion:
sp_companion primary_companion_name, prepare_failback
where primary_companion_name is the name of primary companion server.
From the primary companion, issue:
sp_companion secondary_companion_name, resume
where secondary_companion_name is the name of the secondary companion server.
Issue sp_companion without any options from either companion to make sure you are in normal companion mode.
You cannot connect clients with the failover property
until you issue sp_companion resume.
If you do try to reconnect them after issuing sp_companion
prepare_failback, the client stops responding
until you issue sp_companion resume.
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