Perhaps I worded that poorly, it's asking for the amount of space to not use. As in, on a 3TB drive, leave me 2TB for my own purposes and it'll then use a max o

Perhaps I worded that poorly, it's asking for the amount of space to not use. As in, on a 3TB drive, leave me 2TB for my own purposes and it'll then use a max of 1TB. It's not based on how utilised the drive currently is. My problem was it thought the drive was 16TB when in reality it was 2TB. That's a minor usability problem though, one I've been meaning to go and submit a PR for. Edit - As I understand it anyway.