CIM_StorageSynchronized

Class reference

Subclass of CIM_Synchronized

Indicates that two Storage objects were replicated at the specified point in time. If the CopyType property is set to ‘Sync’ (=3), then synchronization of the Storage objects is preserved.

Local properties

uint16 CopyPriority

CopyPriority allows the priority of background copy engine I/O to be managed relative to host I/O operations during a sequential background copy operation.

Values are: Low: copy engine I/O lower priority than host I/O. Same: copy engine I/O has the same priority as host I/O. High: copy engine I/O has higher priority than host I/O. Urgent: copy operation to be performed as soon as possible, regardless of the host I/O requests.

ValueMap Values
0 Not Managed
1 Low
2 Same
3 High
4 Urgent
DMTF Reserved
0x8000.. Vendor Specific

uint16 ReplicaType

ReplicaType provides information on how the Replica is being maintained. Values are:

Full Copy: This indicates that a full copy of the source object is (or will be) generated .

Before Delta: This indicates that the source object will be maintained as a delta data from the replica.

After Delta: This indicates that the replica will be maintained as delta data from the source object.

Log: This indicates that the replica object is being maintained as a log of changes to the source.

Not Specified: The method of maintaining the copy is not specified.

ValueMap Values
0 Not Specified
2 Full Copy
3 Before Delta
4 After Delta
5 Log
DMTF Reserved
0x8000.. Vendor Specific

CIM_ManagedElement SystemElement

SystemElement represents the Storage that is the source of the replication.

uint16 UndiscoveredElement

This property specifies whether the source, the target, or both elements involved in a copy operation are undiscovered. An element is considered undiscovered if its object model is not known to the service performing the copy operation. The values are:

SystemElement: The source element.

SyncedElement: The target element.

Both: Both the source and the target elements. If both the source and the target elements are discovered, the value of this property shall be NULL.

ValueMap Values
2 SystemElement
3 SyncedElement
4 Both
DMTF Reserved
0x8000.. Vendor Specific

uint16 CopyType

CopyType describes the Replication Policy. Values are:

Async: create and maintain an asynchronous copy of the source.

Sync: create and maintain a synchronized copy of the source.

UnSyncAssoc: create an unsynchronized copy and maintain an association to the source.

UnSyncUnAssoc: create an unsynchronized copy with a temporary association that is deleted upon completion of the copy operation.

ValueMap Values
2 Async
3 Sync
4 UnSyncAssoc
5 UnSyncUnAssoc
DMTF Reserved
0x8000.. Vendor Specific

uint16 CopyMethodology

CopyMethodology specifies what copy methodology the service uses to create and/or maintain the target element.

Values are:

Not Specified: The method of maintaining the copy is not specified.

Full Copy: This indicates that a full copy of the source object is (or will be) generated .

Incremental-Copy: Only changed data from source element is copied to target element.

Differential-Copy: Only the new writes to source element are copied to the target element.

Copy-On-Write: Affected data is copied on the first write to the source or to the target elements.

Copy-On-Access: Affected data is copied on the first access to the source element.

Delta-Update: Difference based replication where after the initial copy, only updates to source are copied to target.

Snap-And-Clone: The service creates a snapshot of the source element first, then uses the the snapshot as the source of the copy operation to the target element.

ValueMap Values
0 Not Specified
1 Other
2 Implementation decides
3 Full Copy
4 Incremental-Copy
5 Differential-Copy
6 Copy-On-Write
7 Copy-On-Access
8 Delta-Update
9 Snap-And-Clone
DMTF Reserved
0x8000.. Vendor Specific

uint16 SyncState

SyncState describes the state of the association with respect to Replication activity. Values are:

Initialized: The link to enable replication is established.

and source/replica elements are associated, but the Copy engine has not started.

PrepareInProgress: Preparation for Replication is in progress and the Copy engine has started.

Prepared: All necessary preparation has completed.

ResyncInProgress: Synchronization or Resynchronization is in progress.

This may be the initial ‘copy’ or subsequent changes being copied.

Synchronized: An Async or Sync replication is currently synchronized. When this value is set, SyncMaintained will be true.

FractureInProgress: An operation to fracture an Async or Sync replication is in progress.

Fractured: An Async or Sync replication is fractured.

QuiesceInProgress: A quiesce operation is in progress.

Quiesced: The replication has been quiesced and is ready for a change.

RestoreInProgress: An operation is in progress to copy the Synced object to the System object.

Idle: The ‘normal’ state for an UnSyncAssoc replica.

Frozen: All blocks copied from source to an UnSyncAssoc replica and the copy engine is stopped.

CopyInProgress: A deferred background copy operation is in progress to copy the source to the replica target for an UnSyncAssoc association.

Broken: The relationship is non-functional due to errors in the source, the target, the path between the two or space constraints.

ValueMap Values
0 Unknown
2 Initialized
3 PrepareInProgress
4 Prepared
5 ResyncInProgress
6 Synchronized
7 Fracture In Progress
8 QuiesceInProgress
9 Quiesced
10 Restore In Progresss
11 Idle
12 Broken
13 Fractured
14 Frozen
15 Copy In Progress
DMTF Reserved
0x8000.. Vendor Specific

uint16 ReadOnly

This property specifies whether the source, the target, or both elements are “read only” to the host.SystemElement: The source element.

SyncedElement: The target element.

Both: Both the source and the target elements.are read only to the host.

ValueMap Values
2 SystemElement
3 SyncedElement
4 Both
DMTF Reserved
0x8000.. Vendor Specific

CIM_ManagedElement SyncedElement

SyncedElement represents the Storage that is the target of the replication.

Local methods

None

Inherited properties

datetime WhenActivated
uint16 CopyState
uint16 SyncType
datetime WhenSuspended
uint16 Mode
datetime WhenSynced

Inherited methods

None