J4 ›› 2009, Vol. 36 ›› Issue (3): 480-485.

• Original Articles • Previous Articles     Next Articles

Reliability of distributed storage systems

ZHANG Wei1,2;MA Jian-feng2;YANG Xiao-yuan1   

  1. (1. Engineering Institute of the Armed Police, Xi'an  710086, China;
    2. Ministry of Education Key Lab. of Computer Network and Information Security, Xidian Univ., Xi'an  710071, China)
  • Received:2008-02-28 Revised:2008-10-15 Online:2009-06-20 Published:2009-07-04
  • Contact: ZHANG Wei E-mail:zhaangweei@yeah.net

Abstract:

Based on invalid probability of storage nodes, a model is provided to evaluate the reliability of a given distributed information storage system. In this model, the reliability of a storage system is affected by 4 factors: time, invalidate probability of storage nodes, data distribution algorithm and storage policy. Such a model could partly solve the reliability problem in the system designing phase, and make data service more reliable.

Key words: access structure, failure probability, distributed storage

CLC Number: 

  • TP309