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

被引：7
|
作者：
Chen, Tseng-Yi [1 ]
Yeh, Tsung-Tai [2 ]
Wei, Hsin-Wen [3 ]
Fang, Yu-Xun [4 ]
Shih, Wei-Kuan [4 ]
Hsu, Tsan-sheng [5 ]
机构：
[1] Natl Tsing Hua Univ, Dept Comp Sci, Hsinchu 30043, Taiwan
[2] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN USA
[3] Tamkang Univ, Dept Management Informat, Taipei, Taiwan
[4] Natl Tsing Hua Univ, Inst Informat Syst & Applicat, Hsinchu, Taiwan
[5] Acad Sinica, Inst Informat Sci, Taipei, Taiwan
来源：
2012 IEEE/ACM FIFTH INTERNATIONAL CONFERENCE ON UTILITY AND CLOUD COMPUTING (UCC 2012) | 2012年
关键词：
cloud storage; RAID; cache; random access; distributed file system;
D O I：
10.1109/UCC.2012.26
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Cloud storage is a hot topic at the moment with Google's Google Storage, Microsoft's SkyDrive, iCloud, Dropbox, 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 - CacheRAID. Redundant Arrays of Inexpensive Disk (RAID) is widely used in modern distributed storage systems. Our CacheRAID 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 CacheRAID storage system can conserved 50%similar to 70% of the power consumption compared to the conventional software RAID system.
引用
收藏
页码：117 / 124
页数：8
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