基于信息冗余分散的两种系统可存活性模型  

TWO SYSTEM SURVIVABILITY MODELS BASED ON INFORMATION REDUNDANT PARTITION

作　　者：李之棠[1] 舒承椿[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,武汉430074

出　　处：《计算机研究与发展》2002年第7期769-774,共6页Journal of Computer Research and Development

基　　金：国家"八六三"高技术研究发展计划 (863 -3 0 1-6-1);武汉市科技计划项目 (2 0 0 10 1111)资助

摘　　要：分析和讨论了基于信息冗余分散的两种可存活系统模型——高可靠和高安全模型 .提出了信息冗余分散的二部图模型 ,通过分析点覆盖集与可存活性之间的联系 ,得到了基于信息冗余系统的可存性有效分析方法 .重点分析了高可靠和高安全模型 ,包括模型的系统可存活性特性、模型的局限性以及模型的改进方法 .分析结果表明 ,合理的信息冗余分散可以明显地改善系统的可存活性 .Analyzed and discussed in this paper are two survivable system models based on information redundant partition technology-high reliability model and high security model. Firstly, the bipartite graph model is built for information redundant partition systems. Then based on the relationship between node cover set and system survivability in graphic model G=(S,Z;E) , an effective way of analyzing the system survivability is presented. Finally, detailed analysis of the high reliability model and high security model is given, which includes the system survivability characteristics, the limitations and methods of improvement for the models. The analysis results show the effectiveness of the system survivability improvement by rational information redundant partition technology.

关 键 词：可存活性 信息冗余分散 可靠性 安全性 二部图 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]