校园级元计算机的单一映像文件系统的研究

为了支持广域、异构资源的统一管理，实现单一虚拟机器，提出了基于分布式对象技术的单一映像文件系统的实现方法，建立了一种分布式对象模型，定义了上下文对象与文件对象，论述了单一映像文件系统的组织结构与实现技术，给出了单一映像文件系统的常用操作命令的性能，单一映像文件系统将地理上分布的、不同管理域的、不同节点的广域异构资源映射到虚拟目录系统，以支持广域资源的协同管理与统一调度，为用户提供方便实用的工具与命令，从而简化了元计算系统的操作。

Study of a Single-Image File System for a Campus-Wide Metacomputer

For mapping wide area resources to a single image virtual machine,a technique supporting the implementation of a single image file system(WSIFS) based on distributed objects is introduced into a campus metacomputer. A distributed object model is created as a groundwork of WSIFS,and several definitions about context object and file object are also given. The framework of WSIFS and its implementation are discussed in detail,and the function or performance of some commands supporting WSIFS is experimented. This single image file system maps all resources of the metacomputer into a virtual directory system,provides dependable, consistent and pervasive access to high end computational resources,and gives users some practicable operational tools and commands. Using WSIFS,manipulation of metacomputer becomes simple and easy.