Appdata, isos, system and domains are the only things on the Cache drive, mover has been run and there is nothing on the cache drive that shouldn't be. I only have 1 docker installed currently (plex) and no VMs or ISOs downloaded or(no VMs). I have tried to delete old files that docker apps left behind, but some of the folders won't delete. ( I also have a share thsts empty but there are folders I can't delete (no files in them that I can see) and therfor can't remove the share)

I'm at a point where I want to restart my server from scratch, but don't want to loose the data on the drives in the array, can this be done? And if so, how?