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Although the power usage effectiveness (PUE) metric is not without its problems, it is the de facto standard for measuring energy efficiency in a data center. Japan’s Green IT Promotion Council wants to improve on PUE with its own metric, data center performance per energy (DPPE). The co...
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The quest for efficiency improvement raises questions regarding the optimal air temperature for data centers. The ASHRAE TC-9.9 committee has recently adopted an extension of the recommended thermal envelope for server inlet temperature and humidity. A popular hypothesis suggests that total energy d...
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The trend of increasing heat densities in data centers has held consistent with advances in computing technology for many years. As power density increased, it became evident that the degree of difficulty in cooling these higher power demand loads was also increasing. In recent years, traditional co...
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After I bumped into the same person three times in a row in October at data center–related conferences and other events, I decided that something or someone must be telling me I need to spend more time with him. Tom Canning is a data center consultant at Arch Rock, which manufactures sensors f...
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Data center electrical efficiency is rarely planned or managed. The unfortunate result is that most data centers waste substantial amounts of electricity. Today it is both possible and prudent to plan, measure, and improve data center efficiency. In addition to reducing electrical consumption, effic...
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DataCenter Dynamics Conference
I attended a seminar by Digital Realty Trust (DRT) with Emerson/Liebert and a conference by Datacenter Dynamics last week.
I will focus on each subject more in detail in future blogs, but in this blog I would like to cover a set of overall trends. Those readers who f...
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