Cannot Unmount Drive, no Shared Folders

I am trying to replace a data drive in OMV but I can't figure out how to unmount it. I have removed all Shared Folders, disabled all services (SMB, NFS, etc.) except SSH. I've removed the drive from my mergerfs and Snapraid configs. I even disabled the SMART monitoring on it, but it still shows as "Referenced: Yes". Is there any way to fix this or figure out what else can be referencing this drive?

I have deleted all my shared folders so there are no entries under Shared Folders in Use.

The only other thing I could think of is my Docker is still running but I've stopped all my containers except portainer, and the mount points on my containers use my mergerfs pool and doesn't directly reference the drive, so I don't think that's causing this problem...

Nevermind figured it out - I had a rule in my Snapraid settings that still referenced it.. had to search my config.xml for it