用于教育资源管理的网格文件系统

基于Internet的远程教育是当今及未来教育的一种重要途径，它需要管理大量的教育资源及用户。在这样一个网格环境下，需要有一个具有高可扩展性、具有动态复制的分布式文件共享途径。该文在回顾了文件共享方面的相关工作之后，提出了一种基于Web的分布式文件管理架构——网格文件系统(GridFS)。描述了它的拓扑结构及文件访问服务和元信息服务。GridFS对许多网格应用、数字图书馆的互联和多级Web Cache系统是有益的。

Grid File System Used in Remote Education Resource Management

In remote education program,large amounts of educational resource files and large numbers of users should be managed.In such a grid environment,a high scalable,distributed file sharing approach with dynamic replication is needed.This paper reviews related activities in file sharing and proposes a Web-based distributed file management architecture called grid file system(GridFS) and describes its two fundamental services(namely,file access service and metadata service).GridFS would benefit most grid applications,interlinkage among digital libraries and hierarchical Web cache systems.