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http://dx.doi.org/10.6109/jkiice.2019.23.2.201

Availability Analysis of Systems with Time-Based Software Rejuvenation  

Lee, Yutae (Department of Information and Communications Engineering, Dong-eui University)
Kim, Hyoungseok (Department of Applied Software Engineering, Dong-eui University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.23, no.2, 2019 , pp. 201-206 More about this Journal
Abstract
Rejuvenating a system periodically during the most idle time of the system reduces unexpected downtime caused by software aging and increases its availability. In general, software rejuvenation can be largely divided into two broad categories: time-based rejuvenation policy and condition-based rejuvenation policy. In time-based rejuvenation policy the software rejuvenation is triggered at scheduled time epochs with fixed time intervals, while in condition-based rejuvenation policy the software rejuvenation is performed when system state is checked to satisfy a specific condition. Conditionbased policy adds extra cost to the system due to system monitoring and aging estimation. This paper presents a stochastic model for analyzing time-based software rejuvenation mechanism, where the rejuvenation is triggered at scheduled time epochs with fixed time intervals, and provides an analytical solution for the steady-state availability, the user-perceived availability, and the corresponding cost.
Keywords
Availability; Software aging; Time-based rejuvenation; Mathematical analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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