A workload assignment policy for reducing power consumption in software-defined data center infrastructure

Takaaki Deguchi, Yoshiaki Taniguchi, Go Hasegawa, Yutaka Nakamura, Norimichi Ukita, Kazuhiro Matsuda, Morito Matsuoka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, we propose a workload assignment policy for reducing power consumption by air conditioners in data centers. In the proposed policy, to reduce the air conditioner power consumption by raising the temperature set points of the air conditioners, the temperatures of all server back-planes are equalized by moving workload from the servers with the highest temperatures to the servers with the lowest temperatures. To evaluate the proposed policy, we use a computational fluid dynamics simulator for obtaining airflow and air temperature in data centers, and an air conditionermodel based on experimental results from actual data center. Through evaluation, we show that the air conditioners' power consumption is reduced by 10.4% in a conventional data center. In addition, in a tandem data center proposed in our research group, the air conditioners' power consumption is reduced by 53%, and the total power consumption of the whole data center is exhibited to be reduced by 23% by reusing the exhaust heat from the servers.

Original languageEnglish
Pages (from-to)347-355
Number of pages9
JournalIEICE Transactions on Communications
VolumeE99B
Issue number2
DOIs
Publication statusPublished - 2016 Feb
Externally publishedYes

Keywords

  • Air Conditioner
  • Computational Fluid Dynamics
  • Data Center
  • Power Consumption Reduction
  • Workload Assignment

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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