[36868] in North American Network Operators' Group
Re: Cooler servers for the Internet
daemon@ATHENA.MIT.EDU (Kevin Facinelli)
Mon Apr 23 10:33:34 2001
Message-ID: <20010423142401.80205.qmail@web13501.mail.yahoo.com>
Date: Mon, 23 Apr 2001 07:24:01 -0700 (PDT)
From: Kevin Facinelli <ksfacinelli@yahoo.com>
Reply-To: ksfacinelli@yahoo.com
To: Sean Donelan <sean@donelan.com>, nanog@merit.edu
In-Reply-To: <20010423123901.14121.cpmta@c004.sfo.cp.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Errors-To: owner-nanog-outgoing@merit.edu
Sean,
I could not be in more agreement with you. I have
written a white paper that discusses this issue. It
covers some of the basics of cooling and power but it
also takes it down to Ohms Law and shows a few excel
worksheets for calculations of single systems as well
as roll-up's for racks of equipment. Here is a link
to the white-paper:
http://www.colosource.com/whitepaper/Coolingandpowerpaper.pdf
Please let me know what you think if you have a chance
to give it a read.
Thanks,
Kevin Facinelli
Director of Operations
Crystal Group Inc
www.crystalpc.com
319-378-1636 x227
--- Sean Donelan <sean@donelan.com> wrote:
>
> IBM is announcing several new servers today. One
> interesting feature
> of the press release is a new focus on power
> consumption and cooling.
>
> IBM directly targets the high heat generated by the
> SUN servers. Compared
> to a Sun Server, the new IBM servers have 1/3 the
> heat dissipation, based
> on the published specifications. IBM eServer p660
> is 3,294 BTUs/hr compared
> with 9,420 BTUs/hr for a Sun Fire 3800.
>
> Of course, these numbers are pretty bogus. Most
> computer manufacture
> specification sheets are useless for accurately
> forecasting the power
> consumption of the equipment. I suspect, after
> Sun's PR people realize
> they are getting beat up, they will go back and
> better calculate the power
> consumption figures for their servers.
>
> I'm not very interested in who really has the
> coolest, most efficient
> computers. I am interested in getting accurate
> information for planning
> purposes. If this leads to computer vendors
> publishing more accurate
> information, great. I'm afraid instead, the
> pendulum will swing the
> other direction and vendors will begin understating
> their true power
> requirements.
>
>
>
=====
Kevin Facinelli
www.colosource.com
webmaster@colosource.com
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