计算机科学与探索Issue(3)：257-265,9.DOI:10.3778/j.issn.1673-9418.1311012
基于云存储的块级连续数据保护系统
Cloud Based Block-Level Continuous Data Protection System
摘要
Abstract
This paper proposes a novel cloud based block-level continuous data protection (CDP) system MYCDP to optimize both backup cost and recovery speed. MYCDP leverages flexible and cost-effective cloud resources as the back-end storage and adopts data deduplication mechanism to eliminate data redundancy globally, thus achieves much lower backup cost than traditional CDP approaches. It also employs a specific version index structure and a disk/memory hybrid cache to accelerate recovery processes in cloud environment with low bandwidth and high latency. This paper describes the system design and process procedures in detail. The experimental results demonstrate that MYCDP can achieve both much lower cost and much faster recovery than cloud based delta-encoding CDP approaches, while remaining same or even better recovery performance over traditional local based CDP approaches.关键词
连续数据保护(CDP)/云/数据去重Key words
continuous data protection (CDP)/cloud/data deduplication分类
信息技术与安全科学引用本文复制引用
顾瑜,刘川意,鞠大鹏,汪东升..基于云存储的块级连续数据保护系统[J].计算机科学与探索,2014,(3):257-265,9.基金项目
The National Natural Science Foundation of China under Grant No.61202081(国家自然科学基金) （国家自然科学基金）
the National High Technology Research and Development Program of China under Grant No.2012AA012609(国家高技术研究发展计划(863计划)) （国家高技术研究发展计划(863计划）
