Criteria to select energy efficiency metrics to measure performance of data centre

Abstract

The progress and development of data center industry has been focused on performance improvements driven by demand of applications from consumer, scientific and business domains. However, continuous demand for energy consumption and emission of green house gases has started to limit further performance growth due to overwhelming electricity bills and carbon dioxide footprints. Therefore, the goal of the computer system design has been shifted to power and energy efficiency. The research highlighted in this paper discusses causes and problems of high power / energy consumption, and explores reasons why energy savings in data center is an important issue. This paper focuses on the importance of implementing green metrics for measuring efficiency of data center in terms of energy consumption and CO2 emissions. We proposed a methodology to choose appropriate metrics to measure performance of data center in terms of energy efficiency, cost savings, green initiatives and CO2 emissions.