[rescue] Apple Announces Rackmount Server - WITH IDEHARDWARE RAID
James Lockwood
james at foonly.com
Thu May 16 10:37:33 CDT 2002
On Thu, 16 May 2002, Joshua D Boyd wrote:
> Yeah, but wouldn't the power bills add up extremely fast when talking about
> a project of that size?
No. Your average x86 box pulls in the neighborhood of 200W. 10000 of
them together pull about 2MW. Even with California electricity gouging
that's only $300/hr. I'm quite sure that their bandwidth budget breaks
this by more than an order of magnitude.
Cooling adds more, sure, that's about a 550 ton heating load. Decent
water based chillers have an EER of around 14, COP of 4-5, so about
another half-megawatt to run.
For a comparison, imagine other ways to solve the Google problem. You
need huge quantities of any type of server to handle their query volume.
Imagine just the support contract costs on, say, a dozen Starcats. They
would be far from able to handle the query volume with the same degree of
competency, you would pay more for upkeep, and a failure (though far
rarer) would affect you far more significantly.
-James
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