The datacenter in Atlanta is located in Suwanee which is north of Atlanta. The Building is operated by Quality Technology Services (www.qualitytech.com). I know since they occupy half of the building. ---------------------- Brian Raaen Network Engineer On Wednesday 01 October 2008, Alex Rubenstein wrote:
I only quickly read this, but have the following question, should google like to answer it...
Of the six datacenters, where are they all physically located?
Someone should get on the bandwagon of having a PUE standard that is climate based. A PUE of 1.3 in the Caribbean is way impressive than 1.3 in Quebec.
And, why the hell do people use PUE rather than DCIE? DCIE makes more sense. A PUE of 1.15 is DCIE of .86, which is somewhat easier to quantify in ones mind. Translation would be, "for every 100 watts into a site, 86 goes to the critical load."
I'd be interested to hear what economization methods they use.
And, while they touch on how the water evaporates to cool their datacenters (a la cooling towers), they neglect to tell us how much water is consumed and evaporated (in a heated form) in to the atmosphere.
Don't take this as an attack on Google, but there is a lot more to a datacenter efficiency analysis than simple stating your PUE and some other data. For instance, if you have a higher PUE but consume no water, are you more eco-friendly? What about airside vs. waterside economization? Is a higher PUE acceptable if the power generation source is photovoltaic or wind (rather than coal or gas)? Do they do ice storage? If they are they using river water, what does heating that water affect?
It's a good topic to talk about (and something I believe NANOG should focus on), but I'd love to see more nuts and bolts in the data from Google.
Google has released its PUE numbers:
<http://www.google.com/corporate/datacenters/measuring.html>