State-control-limit-based rejuvenation modelling and optimisation of the virtualised cloud server

作     者：Dang, Weichao Zeng, Jianchao 

作者机构：College of Electrical and Information Engineering Lanzhou University of Technology Lanzhou730050 China Division of Industrial and System Engineering Taiyuan University of Science and Technology Taiyuan030024 China School of Computer Science and Control Engineering North University of China Taiyuan030051 China 

出 版 物：《International Journal of Reliability and Safety》 (Int. J. Reliab. Saf.)

年 卷 期：2018年第12卷第4期

页      面：406-428页

核心收录：

学科分类：12[管理学] 08[工学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 1007[医学-药学(可授医学、理学学位)] 100706[医学-药理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 081203[工学-计算机应用技术] 0835[工学-软件工程] 0714[理学-统计学（可授理学、经济学学位）] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This research was supported in part by the Key Research and Development Program of Shanxi Province under Grant No. 201703D121042-1  the Key Science and Technology Program of Shanxi Province under Grant No. 20130321006-01  the Youth Foundation of Shanxi Province under Grant No. 201601D021065 and the PhD Research Startup Foundation of TYUST under Grant No. 20152021 

主　　题：Availability 

摘      要：Software rejuvenation modelling and optimisation of the virtualised cloud server has been studied. A software rejuvenation policy on the virtual machines and the virtual machine monitor has been proposed in order to ensure high availability of the virtualised cloud server. The multi-component system, composed of the virtual machines and the virtual machine monitor, which are structurally dependent, has been reduced to the multiple two-component systems. The state-control-limit-based rejuvenation policy has been proposed and the joint probability density of the degraded state of the two-component VM-VMM has been derived. Furthermore, the solution to the joint probability density has been proposed. Finally, the stationary unavailability of the virtualised cloud server has been modelled. Numerical experiments have verified the correctness of the probability density function and the feasibility of the rejuvenation policy. The state-control-limit-based rejuvenation policy leads to lower unavailability of the virtualised cloud server in comparison with the lifetime-based rejuvenation policy. Copyright © 2018 Inderscience Enterprises Ltd.