华中科技大学学报：自然科学版2012，Vol.40Issue(3)：45-48,4.
共模失效情况下集群系统可用性分析
Availability analysis of cluster systems in the case of common mode failure
摘要
Abstract
Availability analysis of cluster systems in the case of CMF（common mode failure） was carried out by Markov process.Firstly,the availability of system with one cluster node was analyzed.Then on the basis of the analysis,the system consisting of two cluster nodes,the two CTMC（continuous time Markov chain） models in the case of no CMF and in the case of with CMF were constructed respectively.Moreover,numerical comparison of steady availability for these two cases was conducted by solving related linear equations and the conclusion on the priority and inferiority comparison of different cases was derived thereby.Furthermore,its correctness was simulated and validated by SRN（stochastic reward nets） and SPNP（stochastic Petri nets package） 6.0 software.The simulation result are well consistent with the CTMC-based theoretical one,which offers foundations for further investigating availability of heterogeneous cluster systems.关键词
集群/共模失效/可用性/马尔科夫过程/模型/验证Key words
cluster/common mode failure/availability/Markov process/model/validation分类
信息技术与安全科学引用本文复制引用
洪志国,王永滨,石民勇..共模失效情况下集群系统可用性分析[J].华中科技大学学报：自然科学版,2012,40(3):45-48,4.基金项目
国家高技术研究发展计划资助项目 （）
中国传媒大学工科规划项目 （）
