I got a Dell server from a giveaway at my school (Optiplex something). The Server came with a 2TB hard disk drive (Hitachi HDS723020BLA642), and a 250GB SSD. The SSD is now my main OS disk in my gaming desktop, it works great (so does the server).
I’m having problems with the hard disk drive though, it shuts down at random times. The S.M.A.R.T. status shows all green, and several different disk checking utilities found no errors. Reading and writing files works fine, there seems to be no data corruption or anything of the sort. The drive seems to have minor physical damage with small piece of plastic missing on the corner, possibly from a fall.
I have tested the disk in several different computers, using several different operating systems, and both SATA/USB connectors. The hard disk drive always shuts down after 1-2 hours of being powered on, whether or not it is in operation.
Any idea what could cause this?