Modeling and Evaluation of Mixed Redundancy Strategy with Instant Switching in Cloud-Based Systems

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

	Modeling and Evaluation of Mixed Redundancy Strategy with Instant Switching in Cloud-Based Systems
	He, Pan; Tan, Chun; Zhao, Xueliang; Zheng, Zhihao
	2015
会议日期	OCT 02-02, 2015
会议地点	Bremen, GERMANY
页码	15-22
通讯作者	He, P (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China.
英文摘要	Mixed redundancy strategy is generally used in cloud-based systems, with different node switch mechanism from traditional mixed strategy. However, related researches often concentrates on traditional mixed redundancy strategy in which cold standby components is working only after all active nodes fail. So a model is developed to evaluate the reliability and performance of cloud-based degraded system subjected to mixed active and cold standby redundancy strategy with continual monitoring and detection mechanism. It is assumed that the node switching process is triggered once some active nodes fail and there are available standby nodes. A continuous-time Markov chain is built on top of the state transition process and both transient and steady state availability and expected job completion rate are used to evaluate system metrics with or with repair facilities. A numerical method is used to solve the model and sensitivity analysis is conducted on different redundancy strategy. Illustrative examples using real-world data were presented to explain the process of calculating the probability of each state and the different kinds of availability and performance. The comparison with traditional mixed redundancy strategy proved that the system behavior was different using different kinds of mixed strategy and the analysis model for traditional strategy was not suitable for strategies in cloud-bases system.
会议录	2015 IEEE 9TH INTERNATIONAL SYMPOSIUM ON THE MAINTENANCE AND EVOLUTION OF SERVICE-ORIENTED SYSTEMS AND CLOUD-BASED ENVIRONMENTS (MESOCA)
语种	英语
WOS记录号	WOS:000380470100003
内容类型	会议论文
源URL	[http://119.78.100.138/handle/2HOD01W0/384]
专题	北斗导航工程中心高性能计算应用研究中心
作者单位	(1) Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China
推荐引用方式 GB/T 7714	He, Pan,Tan, Chun,Zhao, Xueliang,et al. Modeling and Evaluation of Mixed Redundancy Strategy with Instant Switching in Cloud-Based Systems[C]. 见:. Bremen, GERMANY. OCT 02-02, 2015.