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Journal of Electrical and Computer Engineering | Vol.2016, Issue. | 2017-05-30 | Pages

HS-RAID2: Optimizing Small Write Performance in HS-RAID

Yongfeng Dong,Jingyu Liu,Jie Yan,Hongpu Liu,Youxi Wu

Abstract

HS-RAID (Hybrid Semi-RAID), a power-aware RAID, saves energy by grouping disks in the array. All of the write operations in HS-RAID are small write which degrade the storage system’s performance severely. In this paper, we propose a redundancy algorithm, data incremental parity algorithm (DIP), which employs HS-RAID to minimize the write penalty and improves the performance and reliability of the storage systems. The experimental results show that HS-RAID2 (HS-RAID with DIP) is faster and has higher reliability than HS-RAID remarkably.

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HS-RAID2: Optimizing Small Write Performance in HS-RAID

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Keywords

hsraid remarkably storage systems poweraware raid saves energy redundancy algorithm data incremental parity algorithm write operations performance reliability semiraid

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Yongfeng Dong,Jingyu Liu,Jie Yan,Hongpu Liu,Youxi Wu,.HS-RAID2: Optimizing Small Write Performance in HS-RAID. 2016 (),.

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