HP StorageWorks Snapshot XP user guide (T1713-96021, June 2006)

Snapshot XP user guide 55
3. Click OK. The selected V-VOL group’s icon changes to an icon indicating the deleting process.
4. Click Apply. A confirmation message appears.
5. Click OK. The confirmation message closes, and the V-VOL group is deleted in the array.
NOTE: You cannot delete the V-VOL if it is used as a Snapshot XP pair’s S-VOL. To delete a V-VOL
used as an S-VOL, first delete the pair.
Creating Snapshot XP pairs
Use the RAID Manager XP paircreate command to create Snapshot XP pairs. To create Snapshot XP
pairs, the following are required:
• Specify a volume that meets the requirements in Table 2 as a P-VOL
• Specify a volume that meets the requirements in Table 3 as an S-VOL
• Specify the same size volumes as a P-VOL and S-VOL
• Specify the same pool for pairs that share a P-VOL when you use a volume that is already used as
another pair’s P-VOL for the new pair’s P-VOL
For more information about the paircreate command, see the HP StorageWorks RAID Manager XP
user guide.
Storing snapshot data
Use the RAID Manager XP pairsplit command to store snapshot data in the pool. You can store a
maximum of 64 snapshot data per P-VOL. To store snapshot data, the pair status must be PAIR.
NOTE: When a P-VOL is paired with two or more volumes, ensure that none of the pairs are in
COPY(RS-R) status.
You can use the pairsplit command to store one snapshot data at a time, but you cannot specify the
snapshot data ID. For more information about the pairsplit command, see the HP StorageWorks RAID
Manager XP user guide.
NOTE: Snapshot XP does not support Quick Split mode. If you specify Quick Split mode, snapshot data
is not be stored in the pool even if the command ends normally.
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.