CacheRAID: An Efficient Adaptive Write Cache Policy to Conserve RAID Disk Array Energy

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Title:	CacheRAID: An Efficient Adaptive Write Cache Policy to Conserve RAID Disk Array Energy
Authors:	Chen, Tseng-yi;Yeh, Tsung-tai;Wei, Hsin-wen;Feng, Yu-xun;Shih, Wei-kuan;Hsu, Tsan-sheng
Contributors:	淡江大學資訊管理學系
Date:	2012-11
Issue Date:	2012-09-27 17:21:39 (UTC+8)
Abstract:	Cloud storage is a hot topic at the moment with Google's Google Storage, Microsoft's Sky Drive, iCloud, Drop box, Mozy and dozens of others. Because of these applications, conserving energy of storage systems is becoming a growing concern in current storage technology. The factors of disk power consumption include disk idle time, poor random writing performance and random read in distributed file systems. Hence, we present an adaptive write cache mechanism - Cache RAID. Redundant Arrays of Inexpensive Disk (RAID) is widely used in modern distributed storage systems. Our Cache RAID aims to improve the random access problems that implicitly exist in RAID techniques to create more idle time of hard drives, and conserve RAID disk array energy. The experimental results show that Cache RAID storage system can conserved 50%~70% of the power consumption compared to the conventional software RAID system.
Relation:	2012 IEEE Fifth International Conference on Utility and Cloud Computing (UCC), pp.117-124
Appears in Collections:	[Graduate Institute & Department of Information Management] Proceeding

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