On 12/28/11 8:18 AM, "Jonathan Aquilina" <[email protected]> wrote:
>Was thinking that after i sent the email. > >I think the solution to part one of your answer Prentice is the following. > >You would have spare machines on hand that you would swap out with a >faulty machine allowing you the necessary time to replace parts as >needed with out the risk of spilling the oil on the floor and creating >any hazards in the workplace. And you'll have your oily floor "service depot" somewhere else... (and you'll still have oily floors under your racks.. Oil WILL move through the wires by capillary attraction and/or thermal/atmospheric pumping. Home experiment: Get a piece of stranded wire about 30 cm long. Fill a cup or glass with oil to within a couple cm of the top. Drape the wire over the edge of the cup with one end in the oil and the other end on a piece of paper on the surface of the table. (do all this within a raised edge pan or cookie sheet). Wait a day or two. Observe. Clean up. Bear in mind that a 4 U case full of oil is going to be pretty heavy. Oil has a specific gravity/density of around .7 kg/liter. It's gonna be right around the OSHA 1 person lift limit of 55 lb, and I wouldn't want to be the guy standing under the chassis as you pull it out of the top slot of the rack. So you're going to need a rolling cart with a suitable lifting mechanism or maybe a chain hoist on a rail down between your server aisles, sort of like in a slaughter house or metal plating plant? > _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
