I have a short and simple, but important question: I want to change the fan on the back of my Drobo as the stock is much too loud. (I do this at my own risk, of course, and know that this voids any warranty.) I already opened the Drobo and removed the old fan. As I had to wait a few days until my new fan arrived, I now forgot which way the old one was inside. Therefore, I wanna ask: Is somebody here 100% sure which way the air direction is supposed to flow - should the fan blow hot air out or suck cold air in? (I guessed the first way, but I’m not sure anymore …) I would be VERY grateful if anybody could give me an answer. THANKS A MILLION in advance!!