【作者】 焦超； 周天彤； 李祥学； 李建华；

【Author】 JIAO Chao①②③,ZHOU Tian-tong③,LI Xiang-xue①②,LI Jian-hua①② (①School of Information Security Engineering,Shanghai Jiaotong University,Shanghai 200240,China;②Shanghai Key Lab of Information Security Management and Technology Research,Shanghai 200240,China;③School of Information Science and Engineering,Jiangsu Polytechnic University,Changzhou Jiangsu 213016,China)

【机构】 上海交通大学信息安全工程学院； 上海市信息安全综合管理与技术研究重点实验室； 江苏工业学院信息科学与工程学院；

【摘要】 针对当前灾备存储系统数据冗余度高的不足,文中提出了将纠删码技术与P2P技术相结合的可信存储系统架构。并设计了与纠删码技术相匹配的分布式散列表,使得系统更快速有效的定位和获取资源;实现了比传统P2P存储系统更完善的管理机制,克服了其存在废弃数据的缺点,能够彻底的删除废弃文件,有效利用存储资源。文中还提供了有效的数据恢复机制,即使灾难来临,部分存储服务器损坏,系统也能恢复丢失的数据。更多还原

【Abstract】 To overcome the high redundancy shortcomings of current storage system for disaster recovery,this paper proposes a credible storage system architecture which combines the Erasure Codes technology and P2P storage technology.In this paper,a distributed hash table algorithm fit for Erasure code is designed,which makes the system capable of quickly and effectively locating and accessing to resources.Better than traditional P2P system,the storage system management mechanism designed in this paper overcomes the shortcomings of the existence of obsolete data.It could realize the deletion of obsolete documents and effective use of storage resources.This paper provides an effective mechanism for data recovery.Even if the disaster arrives and some storage servers are damaged,the system is also capable of restoring the lost data.更多还原