[103220] in North American Network Operators' Group
Re: rack power question
daemon@ATHENA.MIT.EDU (Sean Donelan)
Sat Mar 22 22:57:16 2008
Date: Sat, 22 Mar 2008 22:54:15 -0400 (EDT)
From: Sean Donelan <sean@donelan.com>
To: nanog@nanog.org
In-Reply-To: <47E5BA49.1050707@zill.net>
Errors-To: owner-nanog@merit.edu
On Sat, 22 Mar 2008, Patrick Giagnocavo wrote:
> Would someone pay extra for > 7KW in a rack? What would be the maximum you
> could ever see yourself needing in order to power all 42U ?
As you recognize, its not an engineering question; its an economic
question. Notice how Google's space/power philosphy changed between
leveraging other people's space/power, and now that they own their own
space/power.
Existing equipment could exceed 20kW in a rack, and some folks are
planning for equipment exceeding 30kW in a rack.
But things get more interesting when you look at the total economics
of a data center. 8kW/rack is the new "average," but that includes
a lot of assumptions. If someone else is paying, I want it and more.
If I'm paying for it, I discover I can get by with less.
