Abstract
This document describes a standardized method to assess the power
efficiency of storage devices used in data center applications in both active and idle
states of operation. A taxonomy is defined that classifies storage devices in terms of
operational profiles and supported features. Test definition and execution rules for
measuring the power efficiency of each taxonomy category are defined; these include
test sequence, test configuration, instrumentation, benchmark driver, IO profiles,
measurement interval, and metric stability assessment. Resulting power efficiency
metrics are defined as ratios of idle capacity or active operations during a selected
stable measurement interval to the average measured power.
This document has been released and approved by SNIA. SNIA believes that the ideas,
methodologies and technologies described in this document accurately represent SNIA goals
and are appropriate for widespread distribution. Suggestions for revisions should be directed to
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