Frequently Asked Question

You will see a “File system is not clean” message if a volume containing data was not properly unmounted. This might happen in the following situations:

• The NAS experienced an abnormal shutdown or forced power off.
• Some services were not stopped correctly before a NAS shutdown.

If you see this message, you should check the file system of the volume to repair any possible errors.

Checking the File System of a Volume

For NAS Models Running QTS 4.2 or Later

1. Log in to QTS.
2. Go to Storage & Snapshots > Storage > Storage/Snapshots.
3. Select a volume, and then click Manage.
   The Volume Management window opens.
4. Select Actions > Check File System.
   
   
   

For NAS Models Running QTS 4.1.x or Earlier

1. Log in to QTS.
2. Go to Control Panel > System Settings > Storage Manager > Volume Management.
3. Click Check File System.
   
   
   

If you still see a “File system is not clean” message after running a file system check, restart the NAS. If this does not resolve the problem, you can contact QNAP technical support by visiting the following link: https://helpdesk.qnap.com/index.php?/Tickets/Submit.