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Druva Documentation

NAS Backup failed after changing the credentials for NAS device

 

NAS Backup failed after changing the credentials for the NAS device

Cause

NAS credentials were updated and post which the backup failed with error Phoenix 370. Error: Client internal error [mkdir /mnt file exists]. You need to check backup logs for additional information.

Traceback

level=error ts=2021-10-07T02:00:32.089372235-04:00 filename=mount_unix.go:162 message="Unable to Unmount network path." path=/mnt/NAS/mountpoint/abc
level=error ts=2021-10-07T02:00:32.110653488-04:00 filename=backup_agent.go:173 message="Failed to mount NAS Share"
level=error ts=2021-10-07T02:00:33.670985083-04:00 layer=main message="Backup Failed" error="mkdir /mnt: file exists"

Resolution

  1. Login to the NAS proxy.
  2.  Shares are mounted under: /var/Phoenix/NAS/mountpoint/ <mount name>.
  3. To check for the stale entries of any mounted shares,  run the command : df -h. This will give us an output for stale file handles for /mnt on NAS proxy.
  4. Unmount the share with this command: umount /var/Phoenix/NAS/mountpoint/<mount name>
  5. Initiate a backup after doing the above steps.

Note : Reboot will help in this condition if you are able to unmount the drive.