nanog mailing list archives
Re: rack power question
From: david raistrick <drais () icantclick org>
Date: Sun, 23 Mar 2008 14:29:12 +0000 (UTC)
On Sun, 23 Mar 2008, Justin M. Streiner wrote:
and and I do have some that can draw close to or over 3000W on a continuous basis. A fully populated 6513 with power hungry blades could eat 6000W.
Easily. The HP blades I have right now are 14 servers in 10u, 6-7,000W. Breaker on it needs to be for over 10,000W. (30x208x1.73 for 30A 3 phase)
With our 1u servers, we're able to get about 12 or so in a rack with a 20A 208V single phase (my exact budget numbers are behind a vpn I don't feel like firing up...;) plus a pair of switches.
At 370W (peak), i'd need 15540W to power 42 of them, 27,972W at the breaker (I prefer 75 to 80% of breakered capacity vs the NEC's 85%). Works out to something like 4 30A 208v single phase circuits and 1 20A. So 29120W at the breaker.
That's a lot of hot air. ;) ...david --- david raistrick http://www.netmeister.org/news/learn2quote.html drais () icantclick org http://www.expita.com/nomime.html
Current thread:
- Re: rack power question, (continued)
- Re: rack power question david raistrick (Mar 22)
- Re: rack power question Patrick Clochesy (Mar 22)
- Re: rack power question Tony Finch (Mar 26)
- Re: rack power question Edward B. DREGER (Mar 22)
- Re: rack power question Martin Hannigan (Mar 28)
- Re: rack power question John Curran (Mar 22)
- Re: rack power question Justin Shore (Mar 22)
- Re: rack power question Lamar Owen (Mar 24)
- RE: rack power question John Lee (Mar 22)
- Re: rack power question Justin M. Streiner (Mar 23)
- Re: rack power question david raistrick (Mar 23)
- Re: rack power question Leo Bicknell (Mar 23)
- Re: rack power question Petri Helenius (Mar 23)
- RE: rack power question Ray Burkholder (Mar 23)
- RE: rack power question Jon Lewis (Mar 23)
- RE: rack power question John Curran (Mar 23)
- Re: rack power question Paul Vixie (Mar 23)
- RE: rack power question Mike Tancsa (Mar 23)
- Re: rack power question Petri Helenius (Mar 23)
- Re: rack power question Lamar Owen (Mar 24)