一种三容错节能型数据布局  

An energy-efficient data layout with fault tolerance of three

作　　者：江培瑞 孟利民[1] 蒋维[1] 商宇洲 胡杨添秀 Jiang Peirui;Meng Limin;Jiang Wei;Shang Yuzhou;Hu Yangtianxiu(College of Information Engineering,Zhejiang University of Technology,Hangzhou 310023)

机构地区：[1]浙江工业大学信息工程学院,杭州310023

出　　处：《高技术通讯》2019年第1期44-52,共9页Chinese High Technology Letters

基　　金：国家自然科学基金(61372087)资助项目

摘　　要：随着网络通讯技术的迅猛发展,数字化信息呈爆炸式增长,数据存储的可靠性以及数据中心的能耗问题更为人们所关注。基于独立冗余磁盘阵列(RAID)存储系统,本文提出了一种可以恢复任意3个失效磁盘的数据且具有一定节能效果的节能交叉奇偶校验(EECPC)数据布局。该方案是在STAR码基础上的提高并结合了优化后的CRUSH数据布局算法。通过分析,该方案与已有的一些3容错阵列码相比具有更小的计算复杂度且具有一定的节能效果,拥有一定的实用价值。With the rapid development of network communication technology,the digital information is increasing explosively,the reliability of data storage and the energy consumption of the data center have been concerned more and more.Based on redundant arrays of independent disks(RAID)storage system,a data layout scheme of energy-efficient cross parity check(EECPC)is proposed,which can recover data from any 3 invalid disks and has certain effect of saving energy.This scheme takes into account two factors of data reliability and energy consumption in the storage system,which is improved by STAR erasure code and combined with optimized CRUSH data layout algorithm.The experiment results show that the scheme has smaller computational complexity compared with some existing erasure codes which can tolerate 3 faults,and has certain energy saving effect.

关 键 词：数据存储 可靠性 独立冗余磁盘阵列(RAID) 节能 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]