通信学报 ›› 2015, Vol. 36 ›› Issue (3): 216-223.doi: 10.11959/j.issn.1000-436x.2015077

• 学术论文 • 上一篇    下一篇

Cloud-P2P云存储结构的模型建立与性能分析

金顺福1,2,王晨飞1,2,陈玲玲3,霍占强4   

  1. 1 燕山大学 信息科学与工程学院,河北 秦皇岛 066004
    2 河北省计算机虚拟技术与系统集成重点实验室,河北 秦皇岛 066004
    3 中国联合网络通信有限公司秦皇岛市分公司,河北 秦皇岛 066000
    4 河南理工大学 计算机科学与技术学院,河南 焦作 454000
  • 出版日期:2015-03-25 发布日期:2017-06-21
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;河北省自然科学基金资助项目

Modeling and analysis of Cloud-P2P storage architecture

Shun-fu JIN1,2,Chen-fei WANG1,2,Ling-ling CHEN3,Zhan-qiang HUO4   

  1. 1 School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
    2 The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province, Qinhuangdao 066004, China
    3 The China United Network Communications Co., Ltd., Qinhuangdao Branch, Qinhuangdao 066000, China
    4 College of Computer Science and Technology, Henan Polytechnic University, Jiaozuo 454000, China
  • Online:2015-03-25 Published:2017-06-21
  • Supported by:
    TheNationalNaturalScienceFoundationofChina;TheNationalNaturalScienceFoundationofChina;The Natural Science Foundation of Hebei Province

摘要:

基于Cloud-P2P云存储结构,针对云中心和P2P节点存储层数据副本的访问机制,考虑节点存储层数据副本的修复过程,建立一个三维连续时间Markov链模型。使用矩阵几何解方法导出该模型的稳态解,并给出节点存储层传输率,数据访问延迟和副本修复率等系统性能指标的表达式。通过数值实验和系统仿真定量刻画数据副本数等系统参数对Cloud-P2P云存储结构性能的影响。构造利润函数,进行用户存储层副本数的优化设置。

关键词: 云存储, P2P, 三维Markov链, 矩阵几何解, 性能指标

Abstract:

Based on the Cloud-P2P storage architecture, taking into account the data access mechanism with both the data center and the peer-based layer, considering the repair process of the replica, a three-dimensional Markov chain model was constructed. The steady-state analysis of the model is obtained by using a matrix-geometric method. Then, the per-formance measures in terms of peer-based traffic load, the average access time, and the repair rate are given. Moreover, numerical results with analysis and simulation are provided to demonstrate the influence of the system parameters on the system performance. By constructing a benefit function, the number of replicas in peer-based layer is optimized.

Key words: cloud storage, P2P, three-dimensional Markov chain, matrix-geometric, performance measures

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