HP P9000 Snapshot User Guide (AV400-96394, October 2011)

Table 15 Pair Status Definitions
V-VOL accessP-VOL accessDescriptionStatus
No R/WYesThe volume is not assigned to a pair.SMPL
No R/WYesThe initial copy is in progress. If the P-VOL is already paired with
another V-VOL, status does not change to COPY.
COPY
No R/WYesThe initial copy operation is complete and the volumes are paired.
If pool capacity exceeds the threshold when a pair is in PAIR status,
the status changes to PFUL in RAID Manager.
PAIR (PFUL)
R/W enabledYesThe pairsplit operation has been completed. Updates are written to
the P-VOL but not are not mirrored in the V-VOL. The V-VOL maintains
pointers to P-VOL data at the time of the split.
PSUS (PFUS)
If pool capacity exceeds the threshold when a pair is in PSUS status,
the status changes to PFUS in RAID Manager.
No R/WYes, unless a
failure occurs
The pair is suspended by the system. The reason may be one of the
following:
PSUE
during a pair
restore.
• Snapshot data in the pool exceeds capacity.
• A failure has occurred while restoring the pair.
No R/WYesThe pairresync operation has begun on the PSUS or PFUS pair. This
deletes Snapshot data from the pool. The pair continues to exist.
COPY(RS)
No R/WYesThe pairresync-restore operation has begun on the PSUS pair. This
writes Snapshot data from the pool back to the P-VOL.
COPY(RS-R)
No R/WYesThe pair deletion operation has begun.SMPL(PD)
You cannot create pairs using a volume in SMPL (PD) status. However,
this status changes to SMPL status after a brief interval. Then the
volumes can be used in the paircreate operation.
Statuses required for pair operations
To perform a pair operation, the pair must have a specific status. The following table shows the
RAID Manager pair operations and the statuses in which they can be performed.
Table 16 Statuses required to run pair operations
Required statusRAID Manager pair operation
SMPLpaircreate
PAIR/PFULpaircreate –split
PAIR/PFULpairsplit
PSUS/PFUS, PSUEpairresync
PSUS/PFUSpairresync -restore
PAIR/PFUL, PSUS/PFUS, PSUEpairsplit -S
Monitoring pair, volume details
You can review more details for a pair and pair-volumes than are available on the Pair Operation
window. This includes volume capacity, related pool ID, pool usage, and so on.
Monitoring the system 33