Maintaining The System; Pair Maintenance-Change The Pair-Split Option - HP StorageWorks P9000 User Manual

9 Maintaining the system

Some maintenance tasks are a response to behavior discovered during system monitoring. However,
you can also change certain settings to keep the system in tune with your changing requirements.
Pair maintenance—change the pair-split option
You can change the option that specifies whether a pair-split operation that is triggered by pair
failure is applied to all the pairs in the mirror, or only to the affected pair. This option was first set
during the pair create operation.
Prerequisite information
You can change this option only for pairs in Duplex, Suspend, Hold, Holding, or Hlde status.
To change the option
1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z > Pair
Operation.
2. Click
3. In the tree, select the port that you have configured for the pair, or a host group (displayed
below the ports). The volumes for the port or host group display in the right-side list area,
4. In the list, right-click the desired pair, or mirror of pairs, then select Change Pair Option from
the menu.
NOTE:
Pair Option dialog box – but do not intend to change the other option, leave blank the option
that you do not want to change.
5. In the Change Pair Option dialog box, click the Error Level list and select one of the following:
Mirror, to cause all pairs in the failed pair's mirror to be split.
Volume, to cause only the pair that failed to be split.
6. In the CFW box, select one of the following to specify whether to copy cache-fast-write data
to the S-VOL or not:
Only P-VOL: does not copy cache-fast-write data to the S-VOL (the default).
Copy to S-VOL: copies cache-fast-write data to the S-VOL.
In a 3DC multitarget configuration, specify the same CFW setting for both Continuous Access
Journal Z and Continuous Access Synchronous Z pairs. If you specify Copy to S-VOL for either
the Continuous Access Journal Z or Continuous Access Synchronous Z pair, the cache-fast-write
data is copied to the S-VOL of the other pair.
7. Click Set when finished.
8. See the Preview list to check the settings that you have made.
If you want to modify a setting, select and right click the setting in the Preview list and
then select Modify.
If you want to cancel a setting, select and right click the setting and then select Cancel.
9. Click Apply to apply the settings. If an error occurs, the error code appears in the rightmost
column of the Preview list. To view detailed information about the error, right click the error
code and select Error Detail.
94 Maintaining the system
to change the mode from View to Modify.
If you selected multiple pairs and want to change one of the options on the Change