HP XP P9500 Storage - Manual (Page 93)

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.
This chapter provides information and instructions for maintaining a Continuous Access Journal Z
system.
Pair maintenance—changing 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.
Procedure 21 To change the option
1. In the Remote Web Console main window, select Actions > Remote Copy > Continuous Access
Journal Z > Pair Operation.
2. Click to change the mode from View to Modify.
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: If you selected multiple pairs and want to change one of the options on the Change
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 split all pairs in the failed pair’s mirror.
•
Volume, to split only the pair that failed.
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 multi-target 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 Cnt Ac-J Z or Cnt Ac-S Z pair, the cache-fast-write data is copied to the S-VOL of the other
pair.
7. Click Set when finished.
8. Review settings in the Preview list in the Journal Operation window.
•
To modify a setting, right click and select Modify.
•
To cancel a setting, right click and select Cancel.
9. Click Apply to apply the settings. If an error occurs, the error code appears in the right-most
column of the Preview list. To view detailed information about the error, right click the error
code and select Error Detail.
Pair maintenance—changing the pair-split option 93