HP 3PAR InForm OS 3.1.1 CIM API (QL226-96591, July 2012)

4. Locality - specifies the relationship between the source and target element. There are two
defined localities:
a. Local - indicates the source and target elements are contained in a single managed system.
b. Remote - indicates the source and target elements are contained in separate managed
systems. In this case, the service must rely on a networking protocol for the copy
operations. HP 3PAR SMI-S supports read-only implementation of remote replication.
SMI-S terminologies can be mapped to HP terminologies.
Table 87 SMI-S/HP Terminology Map
NoteLocalityModeSync TypeType of HP Copy
Target is
synchronized only
manually
LocalSynchronousClonePhysical copy
Target sv contains
synchronously
updated delta of the
source volume
LocalSynchronousSnapshotVirtual copy
Read-only supportedRemoteSynchronousMirrorRemote copy, with
synchronous mode
volume groups
Read-only supportedRemoteAsynchronousMirrorRemote copy, with
asynchronous
periodic mode
volume groups
CIM Classes
TPD_ReplicationGroup
TPD_ReplicationGroup is a volume set that can be used for local clones or snapshots.
Replication Group Key features:
• A group can be the source and/or the target of a copy operation, i.e., volume set
• Elements of a group may be optionally declared copy relations Consistent
• A group may contain zero elements (an empty group)
Volume set is represented by the TPD_ReplicationGroup class, derived from
CIM_ReplicationGroup class. This profile enables management of replication group itself
(create, delete, add member, remove member) as well as copying of the group.
SMI-S also specifies that synchronized groups can maintain replication relationship through the
GroupSynchronized association, as opposed to StorageSynchronized with single volume pair.
InForm OS tracks only the copy relationships between the individual volumes of a vvset, but not
of the vvset itself, hence GroupSynchronized association is not supported for local replication.
Table 88 Relevant Properties of ReplicationGroup Class
DescriptionValueProperties
Within the scope of an array, the
InstanceID opaquely and uniquely
identifies an instance of this class
3PAR:<vvset name>InstanceID
If false, the group, not the elements
associated with the group, may be
TruePersistent
deleted at the completion of a copy
operation. This is always true.
Replication Services Profile 95