Title: Energy aware RAID configuration for data intensive applications in enterprise storages

Authors: Norifumi Nishikawa; Miyuki Nakano; Masaru Kitsuregawa

Addresses: Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo, Japan ' Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo, Japan ' Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo, Japan

Abstract: Energy consumption of storage at data centres is increasing rapidly. Large storage facilities have various RAID configurations incorporating different RAID levels, numbers of drives, and media types. Nevertheless, few discussions of RAID configurations have been pursued from an energy-savings perspective. We first investigate how different RAID configurations affect not only application performance but also power consumption of storage installations. We then present the simulation results for power consumption and application performance obtained using various RAID configurations. These results reveal that a RAID configuration strongly impacts energy conservation based on application I/O features.

Keywords: storage installations; energy consumption; RAID configuration; data intensive applications; energy awareness; data centres; simulation; energy conservation.

DOI: 10.1504/IJCSE.2015.072645

International Journal of Computational Science and Engineering, 2015 Vol.11 No.3, pp.227 - 238

Available online: 23 Oct 2015 *

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