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Title:
availability-oriented redundancy scheme for cloud storage system
Author: Xie Chui-Yi ; Lei Min ; Qing Si-Han ; Xu Qin ; Luo Shou-Shan
Keyword: Availability ; Network coding ; Virtual storage
Source: Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology
Issued Date: 2012
Volume: 36, Issue:UPPL.1, Pages:63-68
Indexed Type: EI
Department: (1) National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing 100876 China; (2) School of Mathematics and Information Science Shaoguan University Shaoguan 512005 China; (3) Institute of Software Chinese Academy of Sciences Beijing 100190 China; (4) Beijing Safe-code Technology Co. Ltd. Beijing 102600 China
Abstract: To satisfy high data availability requirements for cloud storage systems, the data layer of cloud storage systems is regarded as a virtual storage body consists of two virtual storage nodes of a full copy and a encoded copy. A hadoop distributed file system-based complex redundancy scheme integrating the copy redundant mode and coding redundant mode is proposed. Code redundancy is achieved by splitting a data block into several data pieces and using random linear network coding among the pieces. When the storage node availability ranges from 0.6 to 0.9, with the system data availability target of 99.999%, the composite redundancy scheme saves over 35% storage space than full backup scheme.
English Abstract: To satisfy high data availability requirements for cloud storage systems, the data layer of cloud storage systems is regarded as a virtual storage body consists of two virtual storage nodes of a full copy and a encoded copy. A hadoop distributed file system-based complex redundancy scheme integrating the copy redundant mode and coding redundant mode is proposed. Code redundancy is achieved by splitting a data block into several data pieces and using random linear network coding among the pieces. When the storage node availability ranges from 0.6 to 0.9, with the system data availability target of 99.999%, the composite redundancy scheme saves over 35% storage space than full backup scheme.
Language: 中文
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/14989
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Xie Chui-Yi,Lei Min,Qing Si-Han,et al. availability-oriented redundancy scheme for cloud storage system[J]. Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology,2012-01-01,36(UPPL.1):63-68.
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