Memory Selection Considerations for Energy-Efficient Data Centers
by Roland Barth and Jeff Hnatek, Qimonda AG
The current strong interest in data center energy efficiency is not surprising when you look at the basic numbers. Data centers and server farms use almost ten times the energy per square foot as office space, and a very large data center can spend more than $75 million a year on server power alone. This energy bill has two components: the power needed to operate the servers, and a large multiplier that is used to keep the equipment cool. Power consumed translates to heat generated and higher potential failure rates. To control heat-related issues, a typical data center may consume 100 W of cooling power for every 100 W used to power a server. Clearly, reduction of server power consumption, and heat generation, are tremendously important in controlling the energy demands of data centers.
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