HP StorageWorks Storage Mirroring for Linux User's Guide (T2558-96317, June 2009)

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Initiating failback
When failover occurs, a source machine has failed. The steps below must be completed in order to
complete failback without IP address or name conflicts.
1. Verify that your source machine is not connected to the network. If it is, disconnect it.
2. Resolve the source machine problem that caused the failure.
3. In the Failover Control Center, select the source machine that is currently standing in for the
failed source.
4. Select the failed source and click Failback. If you specified a pre-failback script in your failover
configuration, that script will be executed at this time.
WARNING: Do not connect the source machine to the network at this time.
NOTE: If your target machine has been replaced during failover because of the configuration
you selected (perform failover by replacing target identity with source), do not select
your target from the Target Machine list. Since the target has been replaced by the
source, it no longer exists and the Failover Control Center will retry for several
minutes (possibly up to five minutes), until it finally fails in locating the target. After
a replace failover, select your source machine in the Target Machine list, which will be
monitoring itself in a failed over state, and perform failback. After failback, the target
will be available again.