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Technology: What Does it Take to Build a Cloud?
A lot. Take Microsoft’s Data Centers. One estimate derived from Microsoft public information is 220,000 servers. In January 2008 Microsoft reported 15 data centers, 17,406 racks with a total power comsumption of 72,500KW.
Microsoft data centers are located in places like Washington, Dublin, Singapore, Beijing, Amsterdam, Puerto Rico and Tokyo. They say that they are expanding by adding 10,000 new servers every month. At that rate, Microsoft has 220,000 servers going into September.
Google is still leading the cloud race. Estimates for the number of servers that Google has are all over, somewhere from 500,000 to more than a million.













