Research And Application On Open Grid Services Architecture

Nowadays, Grid becomes an important information technology in the world, which aims to realize high performance resource sharing and cooperation and to eliminate information and resource island. OGSA(Open Grid Services Architecture) that is called the next generation Grid architecture is a distributed architecture frame on the base of Grid Service. OGSA gives emphasis to location transparency and multiple protocol bindings for service instances, supports integration with underlying native platform facilities. The birth of OGSA indicates that Grid is not only used in scientific computing area, but also used to provide wide, fundamental network environmental supports to commercial applications, in order to realize more convenient information sharing and interaction.This thesis describes the basic content and running mechanism of OGSA in detail, and analyzes the OGSA service-oriented model. Then, a Grid environment that is made up of three nodes is constructed on the base of the Globus Toolkit 3 open platform. In addition, an OGSA application prototype system is developed which realizes computing resource, storage resource, data resource and network resource sharing, and demonstrates feasibility and superiority of OGSA in resource integration.The research work on OGSA in this thesis is absolutely a meaning try. Through the work, it is verified that OGSA has the advantages not only in realizing the high-performance resource sharing and cooperation, but also in eliminating information and resource island. Grid application on OGSA is far from mature now, development and deployment of Grid Service also need improving, but Grid application on OGSA must develop quickly with the development of relative technologies and applications.