RE: Energy consumption vs % utilization?

["Hannigan, Martin" <hannigan () verisign com>]

Sure but colo's dont operate on variances of power based on CPU.
They operate on committed power to cabinet i.e. 120W per cabinet
etc. and the ability to cool a fully loaded facility.

If you had a thousand CPU's use 1W more all at the same time it's
equal to about 9.5A. 1KX2W = 20A, 1KX3W=31A, etc. etc.

--
Martin Hannigan                         (c) 617-388-2663
VeriSign, Inc.                          (w) 703-948-7018
Network Engineer IV                       Operations & Infrastructure
hannigan () verisign com



> -----Original Message-----
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of
> james edwards
> Sent: Tuesday, October 26, 2004 4:18 PM
> To: Alex Rubenstein
> Cc: nanog () merit edu
> Subject: Re: Energy consumption vs % utilization?
>
>
>
> > Thats an insane statement.
> >
> > Are you saying, "You are only wasting money on things if you aren't
> > profitable" ?
> >
> > /action shakes head.
>
> No, I am not but my statement did sure sound like that was what I was
> saying.
> I do think it is apples or oranges comparing CPU % to total 
> power used and
> coming up
> with a wasted factor. My colo needs X amps/hour just to run 
> at idle, I don't
> call this waste.
> It is the cost of doing business. Power factor causes losses. 
> So you need
> enough customers to cover
> this and other expenses.
>
> I guess we need a definition of waste here.
>
> I would say the the heat produced by pulling all the amp/hrs 
> is waste. It
> could be possible to harvest
> this and reuse it elsewhere.
>
> So, just because you are profitable does not mean there is no 
> waste but it
> also depends on how you
> classify waste. Also, do the methods to avoid this waste 
> justify (pay for
> over time) their use.
>
> James H. Edwards
> Routing and Security Administrator
> At the Santa Fe Office: Internet at Cyber Mesa
> jamesh () cybermesa com  noc () cybermesa com
> http://www.cybermesa.com/ContactCM
> (505) 795-7101