Optimization of mixed redundancy strategy with instant switching for series-parallel systems

doi:10.13328/j.cnki.jos.005031

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 北斗导航工程中心

	Optimization of mixed redundancy strategy with instant switching for series-parallel systems
	He, Pan; Zheng, Zhi-Hao; Yuan, Yue; Tan, Chun
刊名	Ruan Jian Xue Bao/Journal of Software
	2017
卷号	28 期号:2 页码:443-456
ISSN号	10009825
DOI	10.13328/j.cnki.jos.005031
通讯作者	He, Pan (hepan@cigit.ac.cn)
英文摘要	In long-time running reliable software systems, as the demand for continuous execution time and task response speed increases, the redundant component needs to be instantly switched when failure occurs. However, reliability optimization is often conducted under the assumption that cold standby redundancy is only activated when all active components fail. This paper tackles the redundancy allocation problem for a mixed redundancy strategy with instant switching to ensure system reliability as well as performance. The redundancy allocation model is built to minimize redundancy configuration cost under the transient availability and job completion rate constraints. Two system performance metrics are analyzed on top of the state transition diagram using Markov-chain theory. A numerical method is used to compute the non-linear model, and a genetic algorithm is used to solve the optimization model based on the double-element encoding mechanism. Illustrative examples are presented to explain the analysis of system transient availability and job completion rate as well as the allocation result under constraints. Experiment results indicate that with the same redundancy, the job completion rate of systems with the new mixed strategy is higher than the systems with traditional strategy. Thus, different redundancy should be allocated for different kinds of redundancy strategies, even under the same constraints. © Copyright 2017, Institute of Software, the Chinese Academy of Sciences. All rights reserved.
语种	中文
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/4464]
专题	北斗导航工程中心
作者单位	Chongqing Institute of Green and Intelligent Technology, The Chinese Academy of Sciences, Chongqing; 400714, China
推荐引用方式 GB/T 7714	He, Pan,Zheng, Zhi-Hao,Yuan, Yue,et al. Optimization of mixed redundancy strategy with instant switching for series-parallel systems[J]. Ruan Jian Xue Bao/Journal of Software,2017,28(2):443-456.
APA	He, Pan,Zheng, Zhi-Hao,Yuan, Yue,&Tan, Chun.(2017).Optimization of mixed redundancy strategy with instant switching for series-parallel systems.Ruan Jian Xue Bao/Journal of Software,28(2),443-456.
MLA	He, Pan,et al."Optimization of mixed redundancy strategy with instant switching for series-parallel systems".Ruan Jian Xue Bao/Journal of Software 28.2(2017):443-456.