CHAPTER 4: ACCOUNTING AND METRICS

Green IT needs baseline data to be established so progress can be appropriately tracked. At this point, there are two topics that need to be reviewed. The first involves accounting for energy costs and the second is process-related metrics.

Accounting for energy costs

The first step is to understand how much is being spent on electricity for the data centers. Many times this charge is buried in other electric utility bills and needs to be broken out, tracked and trended over time.

In terms of electricity, the more granular the understanding the better. Studies show that only around 30% of the electricity actually goes to the IT equipment6. The rest goes to cooling, power systems, and so on. By understanding electrical ...

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