Replica Management Strategy of P2P Model Based on Super Nodes
Li Xia · Modern Electronics Technique · 2009
With the development of computer and network technology,research on the distributed high capacity storage system becomes hot spot.Replica technique is a kind of distributed data management widely used in the distributed system.It is very effective in improving the availability and reliability of documents through increasing the replica of files for redundancy.A Hybrid P2P with super nodes,which organizes large numbers of nodes separated in Internet into united overlay network.In order to improve the efficiency and reliability of storage resource,the system not only deposits ″hotspots″ file on the super nodes,but also uses RAID technique to back-up files.With the general inertia of the nodes,according to the searching probability of documents,the views of square-root replication strategy for data backup is presented in order to download resources successfully and improve space utilization rate.