信息系统冗余功效测试和可靠性研究

发布时间：2018-01-14 12:46

本文关键词：信息系统冗余功效测试和可靠性研究　出处：《西安工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：当前,信息系统已广泛应用于各行各业,其为业务提供便捷性的同时,也为业务的连续性带来了隐患。因此,信息系统的可靠性直接影响着所承载业务的稳定性,而要保障信息系统的持久有效运行,就需要了解信息系统的实际运行情况,通过数据反映信息系统的运行水平,及时发现信息系统运行过程中的薄弱环节等问题并予以解决。本文以西京学院目前运行的信息系统为背景,首先对网络设备进行了 N-1故障分析,并基于分析结果设计了西京学院信息系统的冗余方案;针对信息系统运行可靠性,从功能和过程两个角度进行了分析,运用Petri网理论对信息系统运行过程建立了可靠性模型,定量衡量信息系统的运行过程情况,通过对信息系统运行可靠性的控制来保障信息系统在运行过程中的可靠性;并对冗余测试的相关技术进行了研究,构建了信息系统冗余功效测试方案。本文具体研究内容如下:1.信息系统N-1自动故障模拟方法及分析。选择西京学院外网门户网站系统、OA办公系统,通过LoadRunner工具对网络拓扑中关键链路和关键节点(服务器和核心交换机)进行故障设定、故障计算、故障校验、动作模拟、负载校验、事故对策形成、事故对策形成、分析报告输出。针对信息门户系统和OA办公系统,提出了信息系统N-1故障模拟方法方案,并进行仿真实验。2.信息系统冗余方案研究。分析了西京学院信息系统的现状,分析目前学校的信息系统以及网络设备的单点隐患;然后,针对学校的OA办公系统、教务管理系统和学校门户网站,提出了具体的冗余设计方案。3.基于Petri网的信息系统可靠性评估模型。以西京学院信息系统运行为背景进行了故障分析,基于Petri网的基本理论,以西京学院财务管理系统为背景,提出了基于Petri网的信息系统运行可靠性评估模型,并针对数据中心平台的财务管理系统进行了仿真实验。
[Abstract]:At present, information system has been widely used in various industries, which provides convenience for business, but also brings hidden trouble to business continuity. The reliability of information system has a direct impact on the stability of the carrying business. To ensure the effective and lasting operation of the information system, we need to know the actual operation of the information system. Through the data reflect the level of the information system, timely find out the weak links in the process of information system and solve the problem. This paper takes the information system of Xijing University as the background. First, the N-1 fault analysis of network equipment is carried out, and the redundancy scheme of Xijing University information system is designed based on the analysis results. Aiming at the operational reliability of information system, this paper analyzes the function and process of the information system, and establishes the reliability model of the information system by using the theory of Petri net. The operation process of the information system is quantitatively measured, and the reliability of the information system is guaranteed by controlling the reliability of the information system. The related technology of redundancy testing is also studied. This paper constructs the information system redundancy test scheme. The specific research content of this paper is as follows: 1. Information system N-1 automatic fault simulation method and analysis. Choose Xijing University Web portal system OA office system. Through LoadRunner tools, the key links and key nodes (server and core switch) in the network topology are set up, fault calculation, fault check, action simulation, load check. Accident countermeasure formation, accident countermeasure formation, analysis report output. Aiming at information portal system and OA office system, an information system N-1 fault simulation scheme is put forward. And carry on the simulation experiment .2.The information system redundancy scheme research. Analyzed the Xijing University information system present situation, analyzed the school information system and the network equipment single point hidden danger; Then, for the school OA office system, educational administration system and school portal. This paper puts forward the specific redundant design scheme .3. the reliability evaluation model of information system based on Petri net. The fault analysis is carried out on the background of the information system operation of Xijing University. Based on the basic theory of Petri net and taking the financial management system of Xijing University as the background, this paper puts forward the reliability evaluation model of information system based on Petri net. The simulation experiment is carried out for the financial management system of the data center platform.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.06

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