Snapshot can't be deleted with error "This Snapshot copy is currently used as a reference Snapshot copy by"
Applies to
- ONTAP 9
- SnapMirror
- Snapshot is created manually on Cluster A(9.8) of cascade environment:( A->B->C)
- Then the same snapshot is transferred to Cluster B(9.8) and use that snapshot creates a new volume and then transfers to Cluster C(9.13).
- Change the cascade settings to FAN-OUT(A->B & A->C) since A and C have the same common snapshot.
Issue
- The snapshot on Cluster A can't be deleted with the below error even the snapmirror transfer is completed:
::*> snapshot delete -vserver <vservername> -volume <volname> -snapshot <snapshotname>
Error: command failed: This Snapshot copy is currently used as a reference Snapshot copy by .
- The snapshot details shows the snapshot is owned by snapmirror relationship:
::*> snapshot show -vserver <vservername> -volume <volname> -snapshot <snapshotname>
Vserver: <vservername>
Volume: <volname>
Snapshot: <snapshotname>
Snapshot Busy: false
Physical Snap ID: 525
Logical Snap ID: 525
Database Record Owner: snapmirrorDP.a91be97099eeeb11b603d039ea4987c5_2159856287.nonSMDstOwned
Snapshot Tags: VOPL_owner_snapmirrorDP.a91be97099eeeb11b603d039ea4987c5_2159856287.nonSMDstOwned=snapmirror
- The snapshot can be deleted later on when no owner owned the snapshot:
::*> snapshot show -vserver <vservername> -volume <volname> -snapshot <snapshotname>
Snapshot Busy: false
Physical Snap ID: 525
Logical Snap ID: 525
Database Record Owner: -
Snapshot Tags: -
::*> snapshot delete -vserver <vservername> -volume <volname> -snapshot <snapshotname>
Warning: Deleting a Snapshot copy permanently removes data that is stored only in that Snapshot copy. Are you sure you want to delete Snapshot copy "<snapshotname>" for volume "<volname>" in Vserver "<vservername>" ? {y|n}: