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RE: DATACENTER: power requirements
All are comments I agree with.
Additionally, you must figure in the time spent (and by whom) to make the
measurements.
You may also point out to them that when an X amp circuit is installed, it
does not mean you are drawing (and paying for) X amps continuously.
Sometimes with management folks you need to get real basic.
Terry W. Lancaster
NISN WAN Engineer
Computer Sciences Corporation
NASA - Marshall Space Flight Center
1-256-544-4281 voice
1-256-544-4618 fax
SOME DAYS, IT JUST DOESN'T PAY TO GNAW THROUGH THE STRAPS
-----Original Message-----
From: Christopher E. Brown [mailto:[email protected]]
Sent: Friday, June 04, 1999 7:03 PM
To: Jason Emery
Cc: [email protected]
Subject: Re: DATACENTER: power requirements
On Fri, 4 Jun 1999, Jason Emery wrote:
> I am dealing with some upper management who is under the impression that
we
> should measure the amps drawn by the various pieces of equipment we are
> installing to determine the "actual" amperage required. Theory being that
we
> can save money on our installed power circuits by only installing what is
> needed. Does anyone have any feedback on any "real" reason not to do this.
> Is power really that expensive? Any rough figures on the cost of
installing
> and cabling power? Thanks a ton.
>
> Jason Emery
> Network Engineer
> Avenue A Media
If you set up the device, got it operating at 99%+ load, raised
the room temp to max, and then made accurate measurements of peak and
nominal current draw... Well, it should come out about the same as what
the manufac rates the device as.
If you install only enough to supply the devices at nominal load
you could have some fun, what happens if too many devices are powered on
at once?
In other words, you are dealing with a pointy hair, feed em to the
paper shredder.
----
First Law of System Requirements:
"Anything is possible if you don't know what you're talking about..."