I'm getting that warning for the fix common problems.  I want to make sure I do this right so I don't mess up all my docker containers and lose my settings.  It looks like I can do the following:

 

1.  Stop all containers and set them to not start automatically

2. Navigate to \\tower\cache and copy everything to my computer.

3. Stop the array

4. Click on the cache drive and change the file system to BTRFS

5. Start the array

6. Copy everything back to \\tower\cache

7. Start all containers and set them back to auto-start

 

Is that the correct way to convert the file system on the cache drive?

No!

1. Stop array.

2. Disable docker and VM services.

3. Start array. Make sure there is NO Docker or VMS tab in the GUI.

4. Set all shares currently not Cache:Yes to BE Cache:Yes. Make a note of which shares you changed and what they were.

5. Run mover, wait for completion, check cache drive contents, should be empty. If it's not, STOP, post diagnostics and ask for help.

6. Stop array.

7. Set cache drive desired format to XFS or BTRFS, if you only have a single cache disk and are keeping that configuration, I'd advise XFS. It's only available as a selection if there is only 1 (one) cache slot shown while the array is stopped.

8. Start array.

9. Verify that the cache drive and ONLY the cache drive shows unformatted. Select the checkbox saying you are sure, and format the drive.

10. Set any shares that you changed to be Cache: Yes earlier to Cache: Prefer if they were originally Cache: Only or Cache: Prefer. If any were Cache: No, set them back that way.

11. Run mover, wait for completion, check cache drive contents, should be back the way it was.

12. Stop array.

13. Enable docker and VM services.

14. Start array