A PGSA Based Data Replica Selection Scheme for Accessing Cloud Storage System

摘要：

　　The data replica management scheme is a critical component of cloud storage system.In order to enhance its scalability and reliability at the same time improve system response time,the multiple data replica scheme is adopted.When a cloud user issues an access request,a suitable replica should be selected to respond to it in order to shorten user access time and promote system load balance.In this paper,with network status,storage node load and historical information of replica selection considered comprehensively,a PGSA (Plant Growth Simulation Algorithm) based data replica selection scheme for cloud storage is proposed to improve average access time and replica utilization.The proposed scheme has been implemented based on CloudSim and performance evaluation has been done.Simulation results have shown that it is both feasible and effective with better performance than certain existent scheme.

关键词： cloud storage multiple data replica replica selection PGSA (Plant Growth Simulation Algorithm)

作者: Bang Zhang Xingwei Wang Min Huang

作者单位: College of Information Science and Engineering,Northeastern University,Shenyang,110819 Key Laboratory of Network Control Systems,Chinese Academy of Sciences,Shenyang,110016,China

会议类型: 国际会议

会议名称: ACA,Advanced Computer Architecture(2014年全国计算机体系结构学术会议)

会议地点: 沈阳

会议语种:英文

页码: 140-151

在线出版日期: 2014-08-23（万方平台首次上网日期，不代表论文的发表时间）