%A WANG Xin, WANG Ren-fu, QIN Qin, JIANG Hua %T Optimization Selection Strategy of Cloud Storage Replica %0 Journal Article %D 2018 %J Computer Science %R 10.11896/j.issn.1002-137X.2018.10.056 %P 300-305 %V 45 %N 10 %U {https://www.jsjkx.com/CN/abstract/article_514.shtml} %8 2018-11-05 %X In order to improve the efficiency of the overall data scheduling in the cloud computing environment and research the copy selection problem in the cloud storage system,an optimal selection strategy of cloud storage replicas based on ant colony feeding principle was proposed.In view of the advantages of ant colony algorithm in solving the optimization problem,this strategy combines the ant colony feeding process in the natural environment with the replica selection process in the cloud storage.Furthermore,the pheromone dynamic change law and the Gaussian probability distribution characteristic are used to optimize the replica selection method,so as to obtain the optimal solution of a set of replica resources,and then respond to the appropriate replica of the data request.The experimental results show that the algorithm has good performance in the OptorSim simulation platform.For example,the average operation time is 18.7% higher than that of the original ant colony algorithm,and the time consumption of copy selection is reduced to a certain extent,thus reducing network load.