[123398] in North American Network Operators' Group
Re: FreeAxez raised flooring?
daemon@ATHENA.MIT.EDU (William Herrin)
Fri Mar 5 22:22:16 2010
In-Reply-To: <9e246b4d1003051910i3b77e9efi74d9e014437a5dda@mail.gmail.com>
From: William Herrin <bill@herrin.us>
Date: Fri, 5 Mar 2010 22:21:30 -0500
To: Tim Durack <tdurack@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Fri, Mar 5, 2010 at 10:10 PM, Tim Durack <tdurack@gmail.com> wrote:
> Same way you cool the top of a rack in a cold/hot aisle system. Blow
> cold air up the front of the rack. We measure temperature at select
> points in the rack. Keep the hottest spot below set point, and
> everything is fine. The physics aren't that much different.
>
> We are cooling 20kw per rack with this setup. 4 hp c-class chassis per
> rack. Works great.
Hi Tim,
I poked through AFCO's drawings at
http://www.afcosystems.com/pdf/AFCO_Drawings.pdf, How much of a size
hit is typical? Do you take the depth out to 52" to create enough
space in front of the equipment for air to flow and take the 6-inch
hit to the side for the cabling sidecar?
What's the impact with respect to sharing the facility with non-AFCO
cabinets? I would imagine that with a bunch of these things
dynamically changing their air flow it would be hard to maintain a
static pressure under the floor.
Regards,
Bill Herrin
--
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
