Energy aware data layout for de-duplication system

Fang Yan, Yuan Tan, Qinggang Liang, Ningning Xing, Yaolei Wang, Xiang Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Achieving power efficiency is a very critical issue in today's data centers and other information processing and storage facilities. In this paper we focus on data layout strategies for conserving energy in de-duplication storage systems. We introduce a method to find the least-cost configuration that meets known targets for de-duplication performance (as well as fault-tolerance) while archiving energy efficiency. We have built the Power-Aware De-duplication System (PADS) to reduce energy use of conventional disk based de-duplication storage systems. PADS turns on just enough disk spindles by properly estimating average chunk size, that is, we can modulate the storage disk provision according to the load fluctuation. Simultaneously, by using S-RAID[10] based data layout, disk accesses are concentrated in a part of the disks in a long time which is conducive to scheduling other disks into standby or shutdown mode. Without specialized hardware, the system can still meet performance demands. Our proposed approach reduces energy consumption of de-duplication storage system, makes de-duplication to fully integrated with the underlying storage mechanism.

Original languageEnglish
Title of host publicationProceedings - 13th International Conference on Parallel and Distributed Computing, Applications, and Technologies, PDCAT 2012
Pages511-516
Number of pages6
DOIs
Publication statusPublished - 2012
Event13th International Conference on Parallel and Distributed Computing, Applications, and Technologies, PDCAT 2012 - Beijing, China
Duration: 14 Dec 201216 Dec 2012

Publication series

NameParallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings

Conference

Conference13th International Conference on Parallel and Distributed Computing, Applications, and Technologies, PDCAT 2012
Country/TerritoryChina
CityBeijing
Period14/12/1216/12/12

Keywords

  • Energy Aware
  • data de-duplicaiton
  • data layout

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