This is not a duplicate of Why is my hard drive still full after deleting files?
I have of course attempted all methods mentioned there. Via the terminal I can see nothing listed on the drive. I was able to list all the hidden (.named) folders using
ls -a | egrep '^\.' which then showed me the expected hidden folders, all of which I
sudo rm -rd I've ran a Verify/Repair with Disk Utility (not sure of the effectiveness on an external RAID) but it had no effect.
I know a solution is just reformat, but what if I had a 10TB RAID and still had multiple terabytes of data? Formatting would not be an option.
This is not a locked files issue, not a trash issue, what seams to be the problem?
How can I free up the (4TB, claimed to still be taken up) space on the empty 5TB Promise VTrak E610f media RAID?