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

Summary: 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) (Dell Correctable) ...

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Symptoms

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
Movies Properties

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)
Failed error example

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

 

Cause

N/A

 

Resolution

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.

 

Additional Information

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

 

Affected Products

Dell EMC Unity Family

Products

Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 500, Dell EMC Unity 500F, Dell EMC Unity 600, Dell EMC Unity 600F, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family , Dell EMC Unity Hybrid, Dell EMC UnityVSA Professional Edition/Unity Cloud Edition ...
Article Properties
Article Number: 000052823
Article Type: Solution
Last Modified: 16 Dec 2025
Version:  4
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