HP Storage Mirroring Software - Manual (Page 730)

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Application data—If you are protecting application data, for example a database
application, you will need to use that application to test the integrity of the data and
the files. Use the following instructions to test application data on the target.
1. In order to test the application data on the target, you will need to start the
application on the target. But Storage Mirroring Recover requires applications to be
in a standby mode in order to update files on the target. In order to meet both of
those requirements, you will need to pause the target. When you pause the target,
the source begins to queue the data changes that are occurring. This will give you
an opportunity to start the services on the target, test the data, stop the services,
and then resume the target. Make sure your mirror is Idle and then pause the target
by right-clicking the connection in the Replication Console and selecting Pause
Target.
2. Once the target is paused, you can start the application services on the target. Test
the application data by using clients to connect to the application. For this
evaluation, the clients will need to be configured to access the application from the
target. In a real-world scenario, if failover has occurred, the target would be
standing in for the source and the clients would still be accessing the application
from the source identity.
3. After you have completed your testing, stop the application services on the target.
4. After the application services on the target have been stopped, you can resume
your target through the Replication Console by right-clicking the connection and
selecting Resume Target.
5. While you were testing the application on the target, the application files were
updated on the target, thus your source and target are no longer synchronized. You
will need to perform a manual remirror to resynchronize the files on the source and
target. Right-click the connection and select Mirroring, Start. Select a File
differences mirror. Make sure that Send data only if Source is newer than
Target is not selected. Since your target files are actually newer than the source
(because of the testing you performed), you do want the newer files on the target to
be overwritten by the files from the source. Click OK to begin the mirror.
When the mirror is complete, your source and target will again be synchronized and you
can continue with your evaluation.
6. Configuring failover monitoring
The following instructions will configure failover monitoring.
1. Open the Failover Control Center .
2. Select your target from the Target Machine list box.
3. Click Login to login to the selected target.
4. Click Add Monitor. The Insert Source Machine dialog box appears in front of the
Monitor Settings dialog box.