Based on the summarization of current research work on historic data storage in P/S systems
the paper presents a distributed algorithm to store historic data in P/S systems by proxies.The proxies are organized to form an overlay network.Cconsistent hashing is used to locate metadata agent
and topic data are stored by segments.Topic file indexing
parallel reading and other methods are applied in order to improve the performance.In comparative experiments
the proposed algorithm outperforms in load balancing and scalability.