Design And Analysis Of Cloud Storage System Based On P2P

Cloud Storage is a new network storage type which is a combination of many existingcomputer technologies. Compared with the traditional storage, the distinctive characteristicsof cloud storage is pay as you go. At present, the cloud storage system which based on themaster-slave has single point of failure and high load of the master node; which based on theP2P has complex management and network partition problem; in addition, users can notchoice the storage location by themselves in the currently cloud storage system.In order to solve these problems, we designed a hierarchy cloud storage model based onthe P2P after comparing the two typical cloud storage platforms. This model greatlyalleviated the network partition and single point of failure by increasing edge connectivity;Through the hierarchical structure, it facilitate data update as the node contain all theinformation of the other node in the same ring; Besides, this model reconstruct the node’s IDnamespace, it improve the consistency of overlay network and actual physical network,reduce the communication latency; It has locality and location-aware and has not detourproblem; Through the proportion code in the ID, it also effective avoids the load imbalancecaused by locality.Then, we analysed the working mechanism, including how to join the node and how todeal with after exiting, how to synchronize and update the data structure. Further wediscussed the data location, migration, load balancing and cache problems. Finally, wesimulated the model, including the read/write response time, the average number of hops andload balancing. The results can provide theoretical foundation for the cloud storage system.