HP XP7 Storage - Manual (Page 77)

You can estimate whether the I/O load is heavy or not from frequency of host I/Os. This
operation should be performed under light I/O load conditions.
•
In a delta resync configuration, if you release the Cnt Ac-S Z pair, the Cnt Ac-J Z delta resync
pair is released as well. If you release the Cnt Ac-J Z pair, the Cnt Ac-J Z delta resync S-VOL
is released.
Procedure 15 To delete pairs
1. In the Storage Systems tree, click Replication > Remote Replication, and then select the Cnt
Ac-J Pairs tab.
2. From the list, select the pairs to be deleted.
3. From the Actions menu, click Remote Replication > Delete Pairs.
4. In the Delete Pairs dialog box, review the pairs in the Selected Pairs table. You can remove
a pair from the table by selecting it and clicking Cancel.
5. For Delete Mode, Normal is used for Cnt Ac-J Z.
CAUTION: Please note the following:
•
Forced deletion in the primary system results in data that was not yet sent to the secondary
system being deleted.
•
Forced deletion in the secondary system results in data that was not yet restored being
deleted.
•
If pair status has not changed to Simplex five minutes after you forcibly delete the pair,
delete it again.
•
Make sure not to recreate the pair in the first five minutes after forcibly deleting it using
the same journals (mirrors), even if pair status is Simplex and journal status is Initial: in
this case pair creation could fail and the pair might suspend.
•
A time-out error can occur at the time of a forced deletion if I/O is sent to another pair
in the same journal and the pair’s status is Duplex or Pending.
6. Click Finish.
7. In the Confirm window, review the settings and enter a task name in the Task Name box.
8. Click Apply to save your settings to the system.
Deleting pairs in a mirror
When you delete the pairs in a mirror, data copying between master and restore journals ends.
Prerequisite information
This operation can be performed from the primary or secondary system.
The following information may be useful to you before beginning the procedure:
Deleting pairs in a mirror 77