论文部分内容阅读
在充分分析现有UMS容错计算机网络可靠性分析技术的基础上,针对容错计算机网络可靠性分析中存在的问题,从容错网络系统的特点出发,对计算机网络系统的典型的容错设备可用性建模、网络流量对网络可用性的影响、计算机网络综合可用性评价进行了研究。在容错计算机网络设备可用性建模的过程中,首先分析了软硬件故障相关性系统的特点,采用基于随机Petri网的可靠性分析方法解决了复杂设备难以进行可靠性建模的问题。通过分析影响网络可用性的因素,建立了基于网络性能的综合可用性模型,与现有的网络可靠性评价指标相比,其评价指标反映的信息更加的全面和科学。这对于建设高可用性网络具有较大的指导意义。
On the basis of fully analyzing the existing reliability analysis techniques of fault-tolerant computer network in UMS, aiming at the problems existing in the reliability analysis of fault-tolerant computer networks, this paper analyzes the typical fault-tolerant equipment usability modeling of computer network system from the characteristics of fault-tolerant network system, The impact of network traffic on network availability, and the evaluation of the comprehensive usability of computer networks. In the process of fault tolerant computer network equipment usability modeling, the characteristics of hardware and software fault correlation system are analyzed first, and the reliability analysis method based on stochastic Petri nets is adopted to solve the problem of difficult device reliability modeling. By analyzing the factors that affect network availability, a comprehensive usability model based on network performance is established. Compared with the existing network reliability evaluation indicators, the evaluation indicators reflect more comprehensive and scientific information. This is of great guiding significance for building a high-availability network.