Dell Unity: Stopped responding replication process (Error Codes: 0x9ef4, 0x6701140)

The initial deletion attempt may have been partial only, and a follow up command-line cleanup may be required.

Deleting a LUN replication session from the destination not the source can cause a stopped responding replication process that could result in the below errors.

Non recoverable error on source side

Trying to delete the session from the source side results in an error: (Error Code: 0x6500051)

Trying to create another replication session can cause the below:

Failed: Source in use by another replication process (Error Code:0x9ef4)

Failed: The specified LUN name has already been reserved or LUN with this name already exists. (Error Code:0x6701140)

It can also cause orphaned system (Replication) snapshots that cannot be deleted.

N/A

The replication session can be deleted using command-line interface, using service tools svc_dataprotection.

If assistance is required on performing this cleanup, contact Dell Technical Support or your Authorized Service Representative, and quote this Dell Knowledge Base article ID.

From svc_dataprotection help output, examples:

Delete a replication session by session ID:

svc_dataprotection -r repsess -a delete -s 42949673102_FCNCH0972C30C3_0000_42949673096_FCNCH0972C30C3_0000

Delete a task only on the replication session by session ID:

svc_dataprotection -r repsess -a deletetaskonly -s 42949673102_FCNCH0972C30C3_0000_42949673096_FCNCH0972C30C3_0000

Delete a replication session of LU by LU name:

svc_dataprotection -r repsess -a delete -n srcLun1 -t LU

Delete a replication session of FS by FS OID:

svc_dataprotection -r repsess -a delete -o 0x2800000003

Set a sync rate to the session:

svc_dataprotection -r repsess -a syncrate=high -s 81604378625_FNM00151702100_0000_81604378625_FNM00151702099_0000

Set a sync rate to ALL sync sessions:

svc_dataprotection -r repsess -a syncrate=low -s ALL

Show a sync rate of the session:

svc_dataprotection -r repsess -a showsyncrate -s 42949673102_FCNCH0972C30C3_0000_42949673096_FCNCH0972C30C3_0000

List ALL sync replication sessions with each sync rate:

svc_dataprotection -r repsess -a showsyncrate -s ALL

Show cg replication sessions with each member sync rate:

svc_dataprotection -r repsess -a showsyncrate -s 81604378625_FNM00151702100_0000_81604378625_FNM00151702099_0000

Restore destination NAS server and FS when FS sync replication session is in paused state and source is disruptive.

svc_dataprotection -r repsess -a restore -i FNM00151702100

Examples for resource snap:
Delete objects in a snap operation according to the snap name:

svc_dataprotection -r snap -a delete -n UTC_2017-11-16_03:38:31

Recover objects in a snap operation according to the snap OID:

svc_dataprotection -r snap -a recover -o 0x280000000F