数据网格中高效的分布式存储策略

摘要

在当前数据网格软件中间件系统的基础上,提出一种基于信息散列算法的分布式存储策略.采用信息散列算法对数据文件进行散列处理,将其分布存储于数据网格系统的多个存储服务器.理论分析和实验模拟结果证明,与传统的数据复制技术相比,该策略具有较高的可靠性和并行访问性能.%This paper proposes a distributed storage scheme based on Information Dispersal Algorithm(IDA). This scheme can be deployed on top of current grid middleware, it divides a data file into blocks and distributes them across many target storage nodes. Theoretical analysis and experimental results show that the distributed storage scheme has better data reliability and data access performance than existing data replication methods.