HP StorageWorks XP Remote Web Console Software - Manual (Page 15)

• The required time for deleting snapshot data or XP Snapshot pairs is several seconds, and
sometimes more than ten minutes. The time will increase if the deleted pair uses a large amount
of the pool, or if multiple pairs are deleted at one time.
• When you delete an XP Snapshot pair, the status of the volumes becomes SMPL(PD). Use Business
Copy’s Pair Operation window to see the status of the volume.
Using RAID Manager, you can check the volume status by the pairdisplay command, but you
cannot distinguish between an SMPL volume and an SMPL(PD) volume. To distinguish between an
SMPL volume and an SMPL(PD) volume by using RAID Manager, you need to issue the inqraid
command as well. The inqraid command will show you whether or not the volume is being used
by XP Snapshot. As a result of the inqraid command, if the volume is not used by XP Snapshot, the
volume status is SMPL. If the volume is used by XP Snapshot, the status of the volume is SMPL(PD).
Status of the XP Snapshot Pairs
When you create or split an XP Snapshot pair, the status of the pair changes. Figure 3 on page 15 shows
the transitions of the status of an XP Snapshot pair.
1. SMPL
2. Creating a pair (COPY)
S-VOL P-VOL
PAIR / PFUL
S-VOL P-VOL
PSUS / PFUS
5. Restoring
a pair (COPY(RS-R))
（ SMPL(PD)）
S-VOL P-VOL
PAIR
S-VOL P-VOL
6. PSUE
4. Deleting a pair
3. Storing Snapshot data in the pool
Failure
Pool usage exceeds
the threshold
4. Deleting snapshot
data (COPY(RS))
4. Deleting a pair
Figure 3 XP Snapshot Pair Status Transitions
1.
If a volume is not assigned to an XP Snapshot pair, its status is SMPL.
2. Issue the paircreate command on the SMPL volume to create an XP Snapshot pair. When you
create the first pair for the P-VOL, the pair status changes to COPY, and then the pair status
changes to PAIR when the operation completes.
XP24000 Snapshot User's Guide 15