HP StorageWorks XP Remote Web Console Software - Manual (Page 62)

Restoring Snapshot XP pairs
Use the RAID Manager XP pairresync -restore command to restore Snapshot XP pairs. The Snapshot XP
pair must be in PSUS status when you restore the pair.
When the restoration is complete, the pair status changes to PAIR. For more information about the
pairresync -restore command, see the HP StorageWorks RAID Manager XP user guide.
CAUTION:
If a failure occurs during the restoration, the pair status changes to PSUE. To recover the PSUE pair, delete
the pair's snapshot data. When you recover the PSUE pair by deleting its snapshot data, the P-VOL's
data is not guaranteed. Therefore, you must overwrite the P-VOL with backup data or format the P-VOL.
NOTE:
Snapshot XP does not support Quick Restore mode. If you specify Quick Restore mode, the Snapshot XP
pair is not restored even if the command ends normally.
Deleting snapshot data
Use the RAID Manager XP pairresync command to delete snapshot data. You can store up to 64
snapshot data per P-VOL. Therefore, to store new snapshot data for a P-VOL that already has 64 snapshot
data, you must delete old snapshot data.
If you delete snapshot data, free area in the pool increases. To delete snapshot data, issue the pairresync
command on Snapshot XP pairs in PSUS status. If the snapshot data shares a data area with another
snapshot data, only the snapshot ID is deleted; the data itself is not deleted from the pool.
For more information about the pairresync command, see the HP StorageWorks RAID Manager XP
user guide.
NOTE:
Snapshot XP does not support Quick Resync mode. If you specify Quick Resync mode, snapshot data is
not deleted even if the command ends normally.
Deleting Snapshot XP pairs
Use the RAID Manager XP command or Pairsplit-S pane to delete Snapshot XP pairs.
If you use RAID Manager XP to delete Snapshot XP pairs, you must use the pairsplit -S command. By
using this command, you can delete only one pair at a time. For more information about the pairsplit -S
command, see the HP StorageWorks RAID Manager XP user guide.
If you use the Pairsplit-S pane, you can delete multiple pairs at one time. You can open the Pairsplit-S
pane either from the Business Copy XP main pane or the Snapshot XP pane. To select pairs to be deleted
by port, host group, iSCSI target, or LUN, open the Pairsplit-S pane from the Business Copy XP main
pane. To select pairs by pool, open the Pairsplit-S pane from the Snapshot XP pane.
Deleting Snapshot XP pairs by selecting pairs per port
1. Change Command View XP or XP Remote Web Console to Modify mode. For instructions, se the
HP StorageWorks Command View XP user guide for XP Disk Arrays or the HP StorageWorks XP
Remote Web Console user guide for XP12000/XP10000/SVS200.
2. Display the Business Copy XP main pane.
62 Snapshot XP operations