【摘要】 为了保证数据密集型网格中的数据的可获取性,采用对数据资源增加存储副本的方法,提出了一种数据密集型网格环境下的大数据分片存储及散发方法,并设计了一种数据自动复制及散发模型。初步实验表明该方法能够以较小的系统代价大幅度提高数据的可获取性。更多还原

【Abstract】 In order to ensure data availability in data intensive grid environment,by adding data replicas,a solution that stripes large files into data blocks and distributes over data nodes for storage was proposed,and a mechanism for auto- matic data replication of nodes was desighed.Preliminary simulation experiments show that our approach is effective in improving data availability with limited increase of system costs.更多还原