所有者为中心的网格文件共享研究

Research on Owner-Centric Grid File Sharing

为满足网格环境下的文件访问和共享需求 ,提出一种所有者为中心的网格文件共享机制 ,这种机制的核心思想是资源所有权的分割 通过把资源所有权分割为物理所有权和逻辑所有权 ,资源管理任务被安全地分担到多个资源所有者 ;全局用户标识、紧密绑定和一致性授权使所有者可以对逻辑资源的访问和授权传递实现完全自主的控制 基于这种机制 ,实现了网格文件系统原型VegaFS ,VegaFS的用户可以不受管理域信息特性的限制 。

In order to fulfill the file accessing and sharing requirements in a grid environment, an owner-centric grid file sharing mechanism is proposed. The main idea of this mechanism is the division of resource ownership. By dividing resource ownership into logic ownership and physical ownership, the task of resource management is partaken by multiple resource owners. By global user identity, tight binding and consistent authorization, resource owners can have maximal discretionary control of resource accessing and delegation transfer. Based on this mechanism, a grid-level file system prototype called VegaFS is designed and implemented. Users of VegaFS can slip the leash of administrative domains, consistently accessing the files distributed in different administrative domains.