Implications of Recent Trends in Performance, Costs, and Energy Use for Servers

Acknowledgments 312 Appendix: Simple Cost Model for Data Centers 314 References 318

9.1 INTRODUCTION As data centers have grown in both economic importance and cost, the need for understanding the underlying drivers of total costs in the data center has also increased. In particular, the relationships among processing power, energy use, and purchase costs of information technology (IT) equipment in these facilities strongly affect the fraction of total costs attributable to IT equipment (as distinct from facilities/infrastructure equipment like chillers and power distribution systems).