Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (2): 148-152.doi: 10.3969/j.issn.1000-565X.2011.02.025

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Reliability Analysis of Replica-Based Peer-to-Peer Storage System

Wang Yu  Zhao Yue-long  Hou Fang   

  1. South China university of technology, computer science and engineering college, guangdong guangzhou 51000
  • Received:2010-03-31 Online:2011-02-25 Published:2011-01-02
  • Contact: 王禹(1974-)，男，在职博士生，广东技术师范学院副教授，主要从事计算机网络存储、计算机系统结构、计算机网络与通信研究 E-mail:wangyu_csu@163.com
  • About author:王禹(1974-)，男，在职博士生，广东技术师范学院副教授，主要从事计算机网络存储、计算机系统结构、计算机网络与通信研究
  • Supported by:

    国家自然科学基金资助项目(60573145)；高等学校博士学科点专项科研基金资助项目(200805610019)；广东高校优秀青年创新人才培育项目(LYM09098)

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Abstract:

As the node of peer-to-peer（P2P） storage system is unreliable,it is difficult to predict the overall system availability.In order to solve this problem,a method,which models the whole process of system replica management using Markov chain,is proposed.Then,by analyzing the mathematical model,the system failure probability,the time period,the system life cycle and other relevant data are theoretically calculated.Finally,some simulations are performed on the PlanetLab distributed system platform.The results prove that the theoretical calculation is correct.

Key words: P2P, storage system, replica, Markov chain