Backup and Restore : Enable onQ to back up shared volumes
  
Enable onQ to back up shared volumes
Aside from specifying the shared volume (mount point) at that time that you enroll the PN, in order for onQ to back up shared volumes, these shared drives need to include the required privileges. This requirement does not apply to fixed drives.
To set these privileges:
1. If your PN is a Win2k8 system, apply the hotfix 270891 as described in Microsoft’s KB article 973278 to be able to back up NAS volumes:
64‑bit Win2K8
32-bit Win2K8
2. Configure the onQ Service service to run as one of the following:
the same administrator that is currently logged on to the PN
Local administrator
Domain administrator
 
Warning:  The onQ Service is designed to automatically map the drive for backup. To avoid conflicts, ensure that the user that runs the onQ Service does not have the same share mapped to the same drive letter as you define in Recovery Node Configuration and in Step 4 below. Otherwise, the backup will fail.
3. Ensure that the CIFS‑enabled shares are mapped to the protected nodes with either Local administrator or a Domain administrator.
4. Specify the shared volume (mount point) at that time that you enroll the PN. If already enrolled, modify the PN’s configuration.
Troubleshooting 
If the backup failed with an invalid drive error and the sq.log indicates that The local device name has a remembered connection to another network resource, the onQ Service is trying to map the drive but can’t because the user that the onQ Service is running as is logged in to the server, and already has the drive mapped (see details in Step 2 above). To resolve this issue:
1. Log off from the server.
2. Disconnect the drive for the user running the onQ Service.
3. Change the drive letter for the mapping.