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

5.64
Copy Services Subprofile
CIM API Programming Reference InForm OS Version 2.3.1
8 HostAccessibleState[] - lists the replica synchronization states in which the provider
allows host access to replicas. For physical copy, this is an empty array, as hosts are never
allowed to access it. For virtual copy volumes, there are no restrictions whatsoever, so this
array contains all the valid states that a virtual copy can have:
a
Restore In Progress – a virtual copy promotion is ongoing.
b
Idle – normal state.
9
PersistentReplicasSupported - True indicates replicas can persist during power off or
system reset.
10
MaximumReplicasPerSource – Maximum number of replicas that can be associated with
one source element. If the replica is physical copy or RO virtual copy, then the max number
of replica per source volume is the max number of volume allowed for an InServ minus 1
(8191). If the replica is RW virtual copy, then the max number of replica per source volume
is actually 128, since maximum read-write snapshot per source volume is 128. For the case
where
SyncType is UnSyncAssoc-Delta (virtual copy), the larger number of the two is
selected, which is 8191. For independent clone (
SyncType == UnSyncUnAssoc), this
number is 0 since the replica is not associated with the source volume.
11
MaximumReplicasPerReadWriteSource - Maximum number of replicas that can be
associated with one read-write source element. This only applies to base volume and read-
write snapshots. The resulting replica can only be read-only. The max number of replica per
source volume is the max number of volume allowed for an InServ minus 1 (8191). For
independent clone (
SyncType == UnSyncUnAssoc), this number is 0 since the replica is
not associated with the source volume.
12
MaximumReplicasPerReadOnlySource - Maximum number of replicas that can be
associated with one read-only source element. This only applies to read-only snapshots. The
resulting replica can only be read-write. The max number of replica per source volume is
the maximum read-write snapshot per source volume, which is 128.
13
MaximumLocalReplicationDepth - Maximum local mirror replication depth allowed by
this instance of
StorageReplicationCapabilities, including the parent volume. For
physical copy, this is the maximum number of volumes that can be created on InServ. For
virtual copy, this is 257 (since the maximum number of writable virtual copies per volume is
128, max depth therefore is achieved if a RW volume has one RO child snapshot which in
turn has one RW child snapshot which in turn has one RO child snapshot and so on, up to a
total of 128 RW snapshots in the chain, hence total = # of RW snapshots + # of RO
snapshots + 1 for the parent volume = 128 + 128 + 1).