一种高可用异构容错系统的混合可用性模型

发布时间：2018-03-07 07:54

本文选题：异构　切入点：容错　出处：《科学技术与工程》2015年30期 　论文类型：期刊论文

【摘要】：为解决高可用异构容错系统的可用性评价问题,提出了一种针对高可用异构容错系统的混合可用性评价模型。设计实现异构容错原型系统,包括硬件体系结构框架及软件系统。采用Markov过程与随机Petri网相结合的方式,从可用性量化和系统状态转换两方面构建系统的可用性模型。根据该可用性模型估算系统的高可用指标,并与同构及非容错单机系统进行比较分析。结果表明,该可用性模型能够对异构容错系统进行准确的可用性评价,验证了系统5个9的高可用指标要求。最后总结了影响系统高可用性的主要因素及提升系统可用性的有效方法。
[Abstract]:In order to solve the usability evaluation problem of high availability heterogeneous fault-tolerant systems, a hybrid usability evaluation model for high availability heterogeneous fault-tolerant systems is proposed, and a heterogeneous fault-tolerant prototype system is designed and implemented. Including hardware architecture framework and software system. The combination of Markov process and random Petri net is adopted. The usability model of the system is constructed from the aspects of usability quantization and system state transformation. The high availability index of the system is estimated according to the availability model, and compared with the isomorphic and non-fault-tolerant singleton system. The results show that, The availability model can accurately evaluate the availability of heterogeneous fault-tolerant systems, and verify the high availability index requirements of system 5 9. Finally, the main factors affecting the high availability of the system and the effective methods to improve the availability of the system are summarized.
【作者单位】：西安交通大学电子与信息工程学院;
【基金】：国家“863计划”项目(2008AA01A202)资助
【分类号】：TP302.8

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