HP StorageWorks XP Remote Web Console Software - Manual (Page 26)

26 Using Snapshot XP
If a failure occurs when restoring a Snapshot XP pair, the pair’s snapshot data is written back to the
P-VOL. You might not be able to restore the pair if another pair is being restored.
For more information about the status of Snapshot XP pairs and operations on pairs, see ”
Status of
Snapshot XP pairs ” on page 26.
Status of Snapshot XP pairs
When creating or splitting a Snapshot XP pair, the pair status changes. Figure 4 shows the transition of
the Snapshot XP pair status.
Figure 4 Snapshot XP pair status transition
1. If a volume is not assigned to a Snapshot XP pair, its status is SMPL.
2. Issue the
paircreate
command on the SMPL volume to create a Snapshot XP pair. When creating
the first pair for the P-VOL, the pair status changes to COPY. When the operation completes, the pair
status changes to PAIR.
If you specify a volume that is already paired with one or more S-VOLs as the P-VOL to create another
pair, the pair status does not change to COPY. When the operation completes, the pair status changes
to PAIR.
NOTE:
• If you execute the
paircreate
command immediately after deleting the P-VOL’s last snapshot
data, it might take time to create a new pair.
• If the pool capacity exceeds the threshold when a Snapshot XP pair is in PAIR status, the pair
status changes to PFUL in RAID Manager XP. For more information, see the HP StorageWorks
RAID Manager XP user guide.
• If you issue the
paircreate
command when the pool capacity exceeds the threshold, the
command is rejected and you cannot create the pair.