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8-20 Chapter 8 Performing Pair Operations
Hitachi Universal Replicator for IBM /OS User’s Guide
Splitting a Pair of Data Volumes
After the initial copy operation finishes, you can use the Suspend Pair window
to split the pair of data volumes.
To split one or more pairs, follow the procedure below. Not only the primary
storage system administrator but also the secondary storage system
administrator can perform this operation:
1. Ensure that the Storage Navigator main window is in Modify mode.
For detailed information about how to do this, please refer to Storage
Navigator User’s Guide.
2. Ensure that the Pair Operation window is displayed.
3. In the tree, select a CU number.
4. In the list, select and right-click the pair that you want to split.
The pair status must be Duplex.
5. From the pop-up menu, select Suspend Pair.
The Suspend Pair window appears (
Figure 8-6).
6. In the Suspend Pair window, select the desired pairsplit options for the
pair(s).
7. Select Set to close the Suspend Pair window.
8. See the Preview list in the Pair Operation window to check the settings
that you have made.
– If you want to modify a setting, select and right-click the setting and
then select Modify.
– If you want to cancel a setting, select and right-click the setting and
then select Cancel.
9. Select Apply to split pair(s).
Note: If an error occurs, the rightmost column of the Preview list displays
the error code. To view detailed information about the error, right-click the
error code and then select Error Detail. An error message appears and
gives you detailed information about the error.
10. In the list of the Pair Operations window, verify that the pair has been
split successfully. If the pair has been split, the status of the pair is
Suspend.
Note: To restore a pair that has already been split, use the Resume Pair
command.
Note: In either of the following conditions, the secondary data volume may
become suspended due to a failure:
– You split a pair when the primary data volume is reserved by a
mainframe host.