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

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Note:
Because the driver for Volume Shadow Copy is started before the driver for
Storage Mirroring Recover, if you revert any files on the source that are
contained in your replication set, Storage Mirroring Recover will not be aware of
the revert and, therefore, the file change will not be replicated to the target. The
file change will be mirrored to the target during the next mirroring process.
Automatic snapshots
When Storage Mirroring Recover transitions from a good state to a bad state, it will
automatically attempt to take a snapshot of the data before it leaves the good state and
enters the bad state. For example, if your data is in a good state and you start a mirror,
before the mirror is started, Storage Mirroring Recover will automatically take a snapshot
of the target. In the event the mirror fails to complete, you will have a snapshot of the data
on the target when it was in its last good state.
Only one automatic snapshot per connection is maintained on the target. When an
automatic snapshot is taken, it replaces any previous automatic snapshots.
Scheduling snapshots
You can schedule snapshots of your target data to fit your environment and needs. If the
target data is in a bad state at the time of a scheduled snapshot, the snapshot will be
delayed until the data on the target reaches a good state. If multiple scheduled
snapshots are delayed, only one snapshot will be taken when the data reaches a good
state.
1. Open the Replication Console.
2. Right-click the connection on the right pane of the Replication Console and select
Connection Manager.
3. Select the Snapshot tab. You will not see the Snapshots tab if your server does
not meet the snapshot requirements.