HP StorageWorks P9000 User Manual page 35

The S-VOL's processor blade, whose allocation was changed for creating pair, is allocated again
to the former processor blade when the pair is deleted. If the previous processor blade was removed,
an appropriate processor blade is allocated.
CAUTION:
If you delete a pair, the volume status changes from SMPL(PD) to SMPL. You can check the
volume status in the Pair Operation window.
Although you can check the volume status by using the pairdisplay command of RAID Manager,
this command does not enable you to distinguish between SMPL and SMPL(PD). To distinguish
between SMPL and SMPL(PD), perform the inqraid command. Check whether or not the volume
is used by Business Copy. If the volume is used by Business Copy, the volume status is SMPL(PD).
If the volume is not used by Business Copy, the volume status is SMPL.
After you delete a Business Copy pair, to execute a command to perform tasks such as pair
operation or event waiting, wait 10 seconds until the volume status changes from SMPL(PD)
to SMPL. If you do not wait 10 seconds, the command might end abnormally.
Procedure 2 To delete a pair
1. To synchronize the P-VOL and S-VOL before deleting the pair:
1. Wait until all write I/Os to the P-VOL are complete
2. Set the P-VOL offline
3. Split the pair. This copies differential data to the S-VOL.
2. Click Actions > Local Copy > Business Copy/Snapshot > Pair Operation to open the Pair
Operation window.
3. Change to Modify mode by clicking the
4. In the tree, select the appropriate port or host group. Related volumes and pairs display in
the volume list.
5. Select the pair(s) you want to delete, right-click, and select Pairsplit-S from the menu. The
Pairsplit-S dialog box displays.
If you selected a pair that you do not want to delete, select the pair on the Pairsplit-S dialog
box, right-click, then click Delete. This removes the pair from the deletion list.
6. Click OK.
The Pair Operation re-appears.
7. Review the information in the Preview list.
8. Click Apply to commit the operation to the system.
icon.
Delete pairs 35