IBM mainframe computer disc drives in the 1980's (can't speak for >1990's) always used liquid cooling.
Late 80's (88-89) the 3380's we had were air cooled (i'm fairly sure), certainly the 3390's were.
Then in 92 we threw all the IBM DASD out and got HDS - much better
I remember the room full of chillers for the TCM coolant on the 3084's & 3090's.
Mr Draper Sir, have a look at
How to Install a Computer Water Cooling System - Popular Mechanics though not entirely sure that's what u wanted
