HP StorageWorks Storage Mirroring evaluation guide (T2558-96075, February 2008)

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Performing failback
Failover occurred because the target was monitoring the source for a failure, and when a failure occurred, the target stood
in for the source. User and application requests that were directed to the failed source are routed to the target. Failback is
the process where the target releases the source identity it assumed during failover. As a result, user and application requests
are no longer routed to the target, but back to the source.
If you keep your source identity the same, you must keep the source disconnected from the network to avoid a name or IP
address conflict with the target that is standing in for the source. You will be able to reconnect it after failback. If desired, you
can configure the source with a unique identity and connect it to the network sooner. Whether your source identity is the
same or unique (and thus if the source is connected to the network) gives you the choice of performing failback before or
after restoring your data. For this evaluation, you are going to keep the source identity the same, in which case you will be
performing failback and then restoring your data. For details on restoring before failback, see the User’s Guide.
1. From the Failover Control Center, select the target that is currently standing in for the failed source.
2. Select the failed source and click Failback.
3. When prompted to determine if you want to continue monitoring the source, reconnect the source network cables so
that the source is reconnected to the network.
4. Once the source is back online, select Stop to discontinue monitoring the source.