Hrm actually let’s clarify that, that’s not actually correct.
I have 4x4TB SATA drives internally, so that’s 16TB.
I have a Drobo Pro with 8 3TB drives in it, so that’s another 24. That’s basically just Time Machine, though. And then there’s another Drobo 2 with 5x3TB for archiving some other stuff. So that’s another 15.
So I guess the total is 55 TB, but only 16TB is actually in the machine.