基于故障树分析的网络系统可靠性研究

针对企业对业务连续性的需求,以及现有网络系统可靠性评价方式的缺陷,提出基于故障树分析的可靠性评估建模方法。对通用故障树的分析、构造方法进行简述,采用熵来反映网络系统的健康状况,并进行可靠性测试及模型迭代优化。结果表明:该方法同年度统计指标符合度较好,能真实地反映系统运维现状同运维目标的差距,辅助运维人员进行改良。

Reliability Research of Network System Based on Fault Tree Analysis

For the purpose of business continuity to company, as well as existing defects of network system reliability evaluation approach, propose a method of reliability assessment model which based on fault tree analysis. Briefly described the analysis and the structure method of general fault tree, used entropy to reflect the health of network system, and progressed reliability tested and model iteratively optimized. Result shows the method is close to operation statistical data, can reflect gap between system operation status and operation target, and this method can be used to help operation staff improving system.