Energy consumption vs % utilization?

Erik Haagsman erik at
Tue Oct 26 19:44:04 UTC 2004

It's more or less the truth though. Only on rare occasions, such as the
cluster/fail-over scenario given, can you actually supply less power to
certain machines, and power use largely unrelated to their actual
utilisation. Keep an eye on your UPS load during peak hours and you'll
see the load rising when traffic and server utilisation rises, but
compared to the baseline power needed to feed servers these fluctuations
are peanuts. 
You supply a server with enough power to is this waste
exactly...? If anyone is wasting anything, it's perhaps hardware
manufacturers that don't design efficiently enough, but power that you
provide and that's used (and paid for) by your customers is not wasted



On Tue, 2004-10-26 at 21:07, Alex Rubenstein wrote:
> Thats an insane statement.
> Are you saying, "You are only wasting money on things if you aren't 
> profitable" ?
> /action shakes head.
> On Tue, 26 Oct 2004, james edwards wrote:
> >
> >>
> >> Sorry, this is somewhat OT.
> >>
> >> I'm looking for information on energy consumption vs percent utilization.
> >> In other words if your datacenter consumes 720 MWh per month, yet on
> >> average your servers are 98% underutilized, you are wasting a lot of
> >> energy (a hot topic these days). Does anyone here have any real data on
> >> this?
> >>
> >> Grisha
> >
> > It is only waste is the P & L statement is showing no profit.
> >
> -- Alex Rubenstein, AR97, K2AHR, alex at, latency, Al Reuben --
> --    Net Access Corporation, 800-NET-ME-36,   --
Erik Haagsman
Network Architect
We Dare BV
tel: +31(0)10 7507008
fax:+31(0)10 7507005

More information about the NANOG mailing list