FTDSS:高容错分布式共享存储机制  

FTDSS:High Fault-Tolerance Distributed Shared Storage Mechanism

作　　者：魏青松[1] 卢显良[1] 雷宇[1] 

机构地区：[1]电子科技大学计算机学院,成都610054

出　　处：《计算机科学》2003年第8期172-175,共4页Computer Science

基　　金：国家95重点攻关项目

摘　　要：Computerized data has become critical to the survival of an enterprise. Company must have a strategy forrecovering their data should data lose. RAID is a popular mechanism to offer good fault-tolerance. But RAID can notwork well when one more disks fail. In this paper, we present an efficient Network-based high High-Tolerance Distributed Shared Storage mechanism called FTDSS. FTDSS makes use of disk space of node in Network to build alarge public shared storage space. Users can read/write their file from/to the public storage space from node of net-work Physically File is stored in each node in form of data fragment or XOR verify fragment. Because of redundantXOR fragments, file is available even when two more nodes fail. FTDSS realize distant redundant srorage. At last.this paper use experiment to prove that FTDSS can offer high fault-tolerance and advanced performance.Computerized data has become critical to the survival of an enterprise. Company must have a strategy for recovering their data should data lose. RAID is a popular mechanism to offer good fault-tolerance. But RAID can not work well when one more disks fail. In this paper, we present an efficient Network-based high High-Tolerance Distributed Shared Storage mechanism called FTDSS. FTDSS makes use of disk space of node in Network to build a large public shared storage space. Users can read/write their file from/to the public storage space from node of network. Physically File is stored in each node in form of data fragment or XOR verify fragment. Because of redundant XOR fragments, file is available even when two more nodes fail. FTDSS realize distant redundant srorage. At last, this paper use experiment to prove that FTDSS can offer high fault-tolerance and advanced performance.

关 键 词：FTDSS 企业网 数据可靠性 高容错分布式共享存储机制 网络通信 

分 类 号：TP393.18[自动化与计算机技术—计算机应用技术]