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RE: DATACENTER: power requirements
In the USA, at least, you pay for kilowatt/hours. If you tap the meter
in an unbalanced way then you pay for stupidity. The meter is accurate,
although it can be "fooled" to some extent. About the only thing it is
vulnerable to is power-factor manipulation. Unbalanced reactive loads
can cause it to show higher readings. Datacenters should not have these
problems as most of their load is resistive. Especially if all the meter
sees is the butt-end of a UPS.
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of scott w
> Sent: Saturday, June 05, 1999 10:09 PM
> To: Roeland M.J. Meyer
> Cc: Jason Emery; [email protected]
> Subject: RE: DATACENTER: power requirements
>
>
> On Sat, 5 Jun 1999, Roeland M.J. Meyer wrote:
>
> > They only thing that counts is wattage. You ARE running
> UPS's, right?
> > Except during boot, most server power usage is constant. No
> one running
> > production servers uses "power management" features on
> their DASD farms
> > and RAID packs.
>
>
> But, if one phase is heavily loaded and two other 2 are
> lightly loaded,
> won't you be paying for the difference?
>
> scott
>