Abstract: Based on the analysis of HDFS and Dynamo architecture,a strategy that the database technology and the dynamic consistent hashing algorithm are adopted to deal with different target groups,is presented in this paper.The strategy can schedule integratively according to the storage cost of each storage node,provide the optimal storage node to external.Through the theoretical analysis and the simulation results,this strategy can make the system achieve load balance.Moreover,it can improve overall efficiency of the system and also meet the requirements the data lookup positioning.