The crux of IBM's energy management system is a network of 200 sensors that monitor temperature behind, in front of, and above servers. Data center managers need to adjust the placement of the sensors, two of which are placed on this rack's back door, to get an accurate read-out. Temperatures can easily get over 90 degrees at the back of a rack, while the overall facility is only about 70 degrees.
September 16, 2009 3:24 PM PDT
Photo by: Martin LaMonica
| Caption by: Martin LaMonica
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