The problem is simple:
I wanted to format a GRaid 4tb drive. I deleted some files, but decided a format would be quicker and more thorough, so I started the format. I didn’t realize that there were some files I had hit ‘delete’ on which popped up a notification that asked me for admin privileges to authorize the deletion. The format failed (I don’t know if the pop-up notifications that I ignored had anything to do with the failure) and now, when I plug the drive into my computer (into either of my computers, using USB, FW or ESATA) not only does it not appear in the drive list, it does not appear as a RAW drive in disk management.
It’s a big, empty drive - how can I make it useful again?