Symptoms

The below process is trying to mount the NFS mount point from Data Domain to the below directory. Process: serverdr Directory: /data01/server_backups The below error is seen: Data Domain Boost auto-configuration for primary source ppdm.abc.com SDR_MOUNT_FAILED_WITH_ERROR code=424 reason="The PowerProtect DD System storage unit mount command failed with error: 'The mount point /data01/server_backups is nonempty. BoostFS cannot be mounted on a nonempty mount point. Please try mounting on an empty mount point.'" remediation="none" - - - - - - - - - - - - - - vmdm.log: 2023-12-05T16:38:48.776Z INFO [Search_Node_UpdateHandler] [][][][TRACE_ID:a3a7#######debe;JOB_ID:##########0706][] [c.e.b.v.v.s.VPESearchClustersService.complete(420)] - Completed task af0##bc3-9##6-4##8-9##8-#######03de, error=ErrorMessage(code=0, reason=SearchNode Agent: Operation: Create snapshot; Status: Failed; Description: [Cluster snapshot a7####ea-3##a-4##a-8##0-7308###3377 at PPDM_SnapshotRepo_1 failed with status code 500: {"error":{"root_cause":[{"type":"snapshot_exception","reason":"[PPDM_SnapshotRepo_1:a7####ea-3##a-4##a-8##0-7308###3377/aPQgPEZ2SWajtgdKtJW6lQ] failed to update snapshot in repository"}],"type":"snapshot_exception","reason":"[PPDM_SnapshotRepo_1:a7####ea-3##a-4##a-8##0-7308###3377/aPQgPEZ2SWajtgdKtJW6lQ] failed to update snapshot in repository","caused_by":{"type":"access_denied_exception","reason":"/mnt/PPDM_Snapshots/ppdm_01###24-1##2-4##c-8##a-82cd###f3ca/SearchCluster/indices/56qS7X9uRS2DuhBCecMzHw/meta-zL7YOowBxnnFswaBgf8s.dat"}},"status":500}]; Remedy: Contact customer support, remediation=null, timestamp=0, path=null, extendedInfo=null) - - - - - - - - - - - - - - /var/log/brs/serverdr/serverdr.log BoostFS cannot be mounted on a nonempty mount point. Please try mounting on an empty mount point.'" remediation="none" "detailedDescription" : "SDR_MOUNT_FAILED_WITH_ERROR code=424 reason=\"The PowerProtect DD System storage unit mount command failed with error: 'The mount point /data01/server_backups is nonempty.\nBoostFS cannot be mounted on a nonempty mount point. Please try mounting on an empty mount point.'\" remediation=\"none\"", "detailedDescription" : "SDR_MOUNT_FAILED_WITH_ERROR code=424 reason=\"The PowerProtect DD System storage unit mount command failed with error: 'The mount point /data01/server_backups is nonempty.\nBoostFS cannot be mounted on a nonempty mount point. Please try mounting on an empty mount point.'\" remediation=\"none\"", "detailedDescription" : "SDR_MOUNT_FAILED_WITH_ERROR code=424 reason=\"The PowerProtect DD System storage unit mount command failed with error: 'The mount point /data01/server_backups is nonempty.\nBoostFS cannot be mounted on a nonempty mount point. Please try mounting on an empty mount point.'\" remediation=\"none\"",

Cause

From the above error, we interpret that the below directory already exists on the PowerProtect Data Manager. /data01/server_backups It is not empty which is why the below process is trying to mount the NFS mount point from Data Domain to the below directory. Process: serverdr Directory: /data01/server_backups

Resolution

Log in to the PowerProtect Data Manager appliance in question.Go to the below directory as the root user using the following command: Directory: /data01/server_backups Command: su - Create a copy by using the below command: Command: cp Example: cp -r /data01/server_backups /data01/server_backups.orig Remove any subdirectories that are in the below path with the following command: Path: /data01/server_backups Command: rm -rf /data01/server_backups/* Restart the below service using the following command: Service: serverdr Command: serverdr status Example: admin@ppdm:~> serverdr status Running [9647] admin@ppdm:~> serverdr stop admin@ppdm:~> serverdr start admin@ppdm:~> serverdr status Running [9647] PowerProtect Data Manager attempts to mount using DD Boost protocol to the below directory. The PowerProtect Data Domain System succeeds when using the following command: Directory: /data01/server_backups Command: storage unit mount Check the /var/log/brs/serverdr/serverdr.log to see if the mount succeeds or not.

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