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Handbook of Fiber Optic Data Communication, 4th Edition by Casimer DeCusatis

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Case Study

Energy Efficient Networking for Data Centers

Casimer DeCusatis,      IBM Corporation 2455 South Road, Poughkeepsie, NY

Modern data centers are experiencing unprecedented growth in scale and power consumption. In 1999, a data center was considered large if it covered 5000 ft2. A decade later, in 2009, a large data center was easily taking up over 500,000 ft2, an increase of 100 times. Some data centers, such as those used by IBM, Google, and Facebook, are even larger; in 2011, construction was started on an IBM data center near Beijing, China, which is expected to top 624,000 ft2. As the scale of data centers has grown, so have the power and cooling requirements for servers, storage, and networking. In 2001, there were only a handful ...

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