Design And Implementation Of Distributed Storage System Based On Peer-to-peer

With the development of peer-to-peer computing paradigm, network bandwith hand the capacity of Internet-based end-systems, the end-systems ignored in the past become a valued computing resource. How to utilize the end-systems resources to build a distributed storage system with large-scale, high scalability, reliability and performance in dynamic peer-to-peer network environment is a hot research topic in recently years.In this thesis, firstly, it discusses and summarizes the development and actuality of distributed storage systems. Based on systematically analyzing and summarizing the relevant works on peer-to-peer technology, it designs a P2P-based distributed storage system: P-Store.Based on a highly scalable P2P architecture, P-Store organizes large numbers of nodes distributed in Internet into a united overlay network and builds P2P-based distributed storage system by utilizing the end-systems resources ignored in the past.P-store is a pure distributed system and does not need central node. It works entirely by the exchange of information of the routing tabale. The main functions of P-store include the construction of P-store, the file searching and locating, the information exchange among nodes and so on. The dissertation also defines the P-store communicaton information format based on XML. The results show that P-store has great advantage in info-sharing applications.Finally, the system tests in both function and performance indicate that the system has reached the initial design goals and achieved high performance.