3PAR CIM API Programming Reference for InForm OS 2.3.1 (320-200164 Rev B, February 2010)

5.68
Copy Services Subprofile
CIM API Programming Reference InForm OS Version 2.3.1
5.10.3.2 Associations
5.10.3.2.1 TPD_ReplicaPoolForStorage
The TPD_DeltaReplicaStoragePool is associated to the source StorageVolume via
TPD_ReplicaPoolForStorage.
5.10.3.2.2 TPD_AllocatedFromStoragePool
New instances of TPD_AllocatedFromStoragePool are created that associate the
TPD_DeltaReplicaStoragePool to:
 the parent StoragePool. For non-CPVV, the parent pool is a concrete pool, and whether
this is “all-FC”, “all-NL”, or “all-SSD” [3.1.1] depends on the device type of the source
volume. For CPVV, the parent pool is a
DSP. SpaceConsumed property in either case is
the sum of raw snap volume size and raw admin size.
SpaceLimit and
SpaceLimitThresholdWarning are valid only for CPVV.
 all virtual copy snapshot volumes that are created from the source volume.
SpaceConsumed property for each association in this case is the space consumed by the
snapshot.
For CPVV, the
TPD_AllocatedFromStoragePool association links the
TPD_DeltaReplicaStoragePool with the source DSP. For ThinStorageVolume (TPVV),
the
TPD_AllocatedFromStoragePool association links the
TPD_DeltaReplicaStoragePool with the source SD DynamicStoragePool (as opposed
to the user
DynamicStoragePool).
5.10.3.3 Capacity Calculations
5.10.3.3.1 Non-CPVV
TotalManagedSpace of the TPD_DeltaReplicaStoragePool equals to the raw SD space.
Space used by SA is not included in
TotalManagedSpace, but is included in the
TPD_AllocatedFromStoragePool.SpaceConsumed value, so to deduce the raw SA space,
one can deduct
Pool.TotalManagedSpace from SpaceConsumed. The
UpdateDeltaSnapshotSpace() method should be called to prevent the value of
RemainingManagedSpace from getting too stale.
Pool.TotalManagedSpace = raw SD size
Pool.RemainingManagedSpace = raw SD size – SUM(space used by snapshots)