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Scheduled maintenance activities fail to delete snapshot/s. The delete policy job finish with error "Error deleting snapshots or expired copies" Under Cyber Recovery log mgmtdds.log ( /opt/dellemc/cr/var/log/mgmtdds ): [2023-05-30 18:00:23.782] [DEBUG] [mgmtdds] [expireSnapshots.go:86 getSnapshotList()] : Adding to list of snapshots to expire: [DAILY-SCHEDULED-2023-05-25-10-30_3749 0.0 (error)][2023-05-30 18:00:23.782] [DEBUG] [mgmtdds] [ddUtils.go:111 RunDDSSHCmd()] : Running cmd: snapshot expire DAILY-SCHEDULED-2023-05-25-10-30_3749 mtree /data/col1/DR [2023-05-30 18:00:23.913] [INFO] [mgmtdds] [ddssh.go:318 RunSSHCmd()] : Running: xxx.xxx.xxx.xxx:22 snapshot expire DAILY-SCHEDULED-2023-05-25-10-30_3749 mtree /data/col1/DR [2023-05-30 18:00:26.490] [ERROR] [mgmtdds] [ddssh.go:323 RunSSHCmd()] : Failed to run: 'snapshot expire DAILY-SCHEDULED-2023-05-25-10-30_3749 mtree /data/col1/DR' err: Process exited with status 33 stderr: Snapshot name "DAILY-SCHEDULED-2023-05-25-10-30_3749" does not exist in MTree "/data/col1/DR". Under Cyber Recovery log policies.log ( /opt/dellemc/cr/var/log/policies ): [2023-05-30 18:00:44.976] [INFO] [policies] [workflowService.go:866 updateOverallJobInfo()] : Job cleaning-schedule_C56766 status changed to: Critical detail info: Failed to run DR Backup job: Error deleting snapshots and/or expired copies:Error removing snapshots for this policy DR Process exited with status 33 stderr: **** Snapshot name "DAILY-SCHEDULED-2023-05-25-10-30_3749" does not exist in MTree "/data/col1/DR". From a Data Domain perspective we can see the schedule starting time from messages ( /ddr/var/log/messages ): May 30 18:00:01 vltu65601 ddsh: NOTICE: MSG-DDSH-00009: (tty=<>, session=8686, client_IP=) root: command "filesys clean start nowait scheduled"
This issue occurs when Cyber Recovery cleaning schedule and Data Domain maintenance schedules start simultaneously. Both products are trying to clean up expired snapshots, Cyber Recovery tries to delete a snapshot which is already deleted on Data Domain.
Configure the Cyber Recovery cleaning schedule to run before Data Domain maintenance activities.
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