Today in Green IT: Going beyond PUE in the data center

Last week Google disclosed the details of its energy consumption, and its data center engineers argued that the leading figure cited to assess how energy-efficient a data center is, power usage effectiveness (PUE), must be continuously measured and averaged over a twelve-month period. According to Adam Lesser, GigaOM Pro Green IT analyst, in his weekly column (subscription required), this was a veiled shot at some companies that measure their data centers on a cold day in January when their cooling costs are zero and then publish a great PUE number. And Google is right, says Lesser: we need more transparency surrounding PUE.

In Adam’s column he also suggests three shifts in focus with regard to data efficiency that will matter in the future:

  • 1. Admit the limits of the Power Usage Effectiveness metric.
  • 2. Think about software.
  • 3. Integrate hardware and software efficiency metrics.

To read the complete story check out GigaOM Pro.