IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Recent Developments on Reliability, Maintainability and Dependability
Quantifying Resiliency of Virtualized System with Software Rejuvenation
Hiroyuki OKAMURAJungang GUANChao LUOTadashi DOHI
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2015 Volume E98.A Issue 10 Pages 2051-2059


This paper considers how to evaluate the resiliency for virtualized system with software rejuvenation. The software rejuvenation is a proactive technique to prevent the failure caused by aging phenomenon such as resource exhaustion. In particular, according to Gohsh et al. (2010), we compute a quantitative criterion to evaluate resiliency of system by using continuous-time Markov chains (CTMC). In addition, in order to convert general state-based models to CTMCs, we employ PH (phase-type) expansion technique. In numerical examples, we investigate the resiliency of virtualized system with software rejuvenation under two different rejuvenation policies.

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© 2015 The Institute of Electronics, Information and Communication Engineers
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