HP StorageWorks Storage Mirroring Recover User's Guide (T5437-96008, November 2009)

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● Live failover—Select this option to perform a live failover with network connectivity
to the target replica virtual machine. Live failover will shut down the source virtual
machine (if available), stop the protection job, and start the replica virtual machine
with full network connectivity.
● Test failover—Select this option to perform a test failover without network
connectivity to the target replica virtual machine. Test failover will leave the source
virtual machine online, suspend the protection job, and start the replica virtual
machine on the target with no network connectivity. This feature allows you to
periodically test the replica virtual machine to verify that it is working correctly.
After you select the type of failover to perform, click Failover.
Undoing failover
Once a live or test failover has been performed, it is possible to undo the failover by
clicking on the Undo Failover button. Undoing failover will do the following:
1. The replica virtual machine will be shut down
2. The source virtual machine will be restarted (if it was shutdown with a live failover)
3. The protection will be restarted (a file difference mirror will be performed)
Note:
All changes made to the replica virtual machine while the job is in a failed over
state will be lost when an Undo is performed.
Reversing failover
After a live failover has been performed, you can reverse the protection. This allows you
to replicate target data back to the source. Select a protection that has already failed
over, then click the Reverse protection button to start the protection in the reverse
direction.
The job will start synchronization in the reverse direction. The job name and the log file
name will change accordingly. When the restore completes, the job will be running in the
opposite direction (that is, if the job had originally been running from server Indy to
server Jersey, it will now be running from server Jersey to server Indy).
After the job completes synchronization back to the original source host, failback can be
performed by clicking the Failover button.