North American Network Operators Group|
Date Prev | Date Next |
Date Index |
Thread Index |
Author Index |
Re: Colocation in the US.
- From: Gary Buhrmaster
- Date: Wed Jan 24 23:55:32 2007
Paul Vixie wrote:
i'm spec'ing datacenter space at the moment, so this is topical. at 10kW/R
you'd either cool ~333W/SF at ~30sf/R, or you'd dramatically increase sf/R
by requiring a lot of aisleway around every set of racks (~200sf per 4R
cage) to get it down to 200W/SF, or you'd compromise on W/R. i suspect
that the folks offering 10kW/R are making it up elsewhere, like 50sf/R
averaged over their facility. (this makes for a nice-sounding W/R number.)
i know how to cool 200W/SF but i do not know how to cool 333W/SF unless
everything in the rack is liquid cooled or unless the forced air is
bottom->top and the cabinet is completely enclosed and the doors are never
opened while the power is on.
If you have water for the racks:
(there are other vendors too, of course)
The CRAY bid for the DARPA contract also has some interesting
cooling solutions as I recall, but that is a longer way out.