Delete A Pair - HP StorageWorks P9000 User Manual

configuration of multiple journals for one consistency group is allowed only in the system that
consists of multiple primary and secondary storage systems (see
the Remote Web Console does not support the system that consists of multiple primary and
secondary storage systems, an error occurs if you try to restore a mirror by using the Remote
Web Console in this system configuration.
Best practice is to resynchronize when I/O load is low. This reduces impact on performance.
Operations on multiple pairs in the same consistency group with different statuses may result
in suspension during high periods of write I/O.
To resynchronize a mirror
1. In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal > Journal
Operation.
2. Click
3. In the tree, expand Registered then select the desired LDKC. Journals display in the tree, Mirrors
display in the right-side pane.
As another way, select Journal in the tree. Mirrors display in the right-side pane.
4. In the list, select a pair to resume, perform the delta resync operation, or change the status
from Hold(Failure) to Hold.
5. Right-click and select Mirror > Pairresync from the menu. The Pairsplit-r dialog box displays.
If Stopped is selected, all pairs in the mirror is resynchronized and then the data copy
restarts.
If Hold or Holding is selected, the delta resync operation is performed on all pairs in the
mirror.
If Hold(Failure) is selected, the status of the mirror is changed to Hold.
6. Click Set.
7. See the Preview list to check the setting that you want to restore.
If you want to cancel restoring a mirror, select and right click the mirror and then click Delete.
8. Click Apply to restore the mirror(s). 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 item in
the Preview list and select Error Detail.

Delete a pair

When you delete a pair, the Continuous Access Journal relationship between the P-VOL and S-VOL
is released. The data volumes and their data remain, but in SMPL status.
Prerequisite information
This operation can be performed from either the primary or secondary storage systems.
When a pair deletion is initiated, transfer of differential data from P-VOL to S-VOL is completed,
then the pair relationship is deleted and the volume's status becomes SMPL.
A pair can be deleted regardless of its status. However, data consistency is not guaranteed
unless status is Paired.
If the operation fails, the P-VOL nevertheless becomes SMPL. Transfer of differential data to
S-VOL is terminated.
Best practice is to perform pair deletion when I>O load is low. This reduces impact on
performance. Operations on multiple pairs with different statuses and in the same mirror may
result in suspension during high periods of write I/O.
to change the mode from View to Modify.
Figure 4 (page 29)). Because
Delete a pair 63