Starting failover – HP Storage Mirroring Software User Manual
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Evaluations
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Starting failover
When a failover condition is met, you will want to start failover. You can actually start
failover without a failover condition, as long as protection is enabled. For example, you
may want to force a failover when upgrading to a better source server.
Note: If you are testing failover and your source is a domain controller, do not let the
domain controller communicate with any other production domain controllers after
failover. Otherwise, when the original source domain controller is brought online
after the test, it may create a USN rollback scenario if the test domain controller
was allowed to communicate with other production domain controllers.
1. To begin failover, click Failover.
2. If Storage Mirroring Recover determines there is a possibility that the data on the
target is incomplete, you will be warned before failover begins. If you proceed with
failover, the state of the source will be unknown until failover is complete. The best
case scenario would be a missing data file, while the worst case scenario would
be missing system state data that causes the server to be unusable or unbootable.
For this evaluation, select Use live data and click OK.
3. Monitor the failover percentage as shown in the Protection Status. At the end of