HP StorageWorks XP Remote Web Console Software - Manual (Page 14)

Figure 5 XP Snapshot Pair Status Transition
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. If you specify a volume which is already
paired with one or more S-VOLs as the P-VOL to create another pair, the pair status will not
change to COPY. The pair status will change to PAIR when the operation completes.
3. Issue the pairsplit command on the XP Snapshot pair in PAIR status to store the snapshot
data in the pool. When the operation completes, the pair status changes to PSUS.
•
If you execute the paircreate command immediately after deleting the last snapshot
data of the P-VOL, it may take time to create a new pair.
•
If the pool capacity exceeds the threshold when an XP Snapshot pair is in PAIR status,
the pair status changes to PFUL in RAID Manager. For details, see the HP XP RAID Manager
User Guide.
•
If the pool capacity exceeds the threshold when an XP Snapshot pair is in PSUS status,
the pair status changes to PFUS in RAID Manager. For details, see the HP XP RAID
Manager User Guide.
4. To delete only snapshot data and leave the XP Snapshot pair, issue the pairresync command
to the PSUS or PFUS pair. During the operation, the pair status changes to COPY(RS).
To delete the XP Snapshot pair, issue the pairsplit-S command or use Remote Web
Console. During the operation, the pair status changes to SMPL(PD).
5. Issue the pairresync -restore command on the XP Snapshot pair in PSUS status to restore
the pair. After that, the snapshot data will be written back to the P-VOL. During the operation,
14 About XP Snapshot Operations