Quantifying Resiliency of Virtualized System with Software Rejuvenation

DOI Web Site 被引用文献1件 参考文献13件
  • OKAMURA Hiroyuki
    Department of Information Engineering, Graduate School of Engineering, Hiroshima University
  • GUAN Jungang
    Graduate School of Advanced Sciences of Matter, Hiroshima University
  • LUO Chao
    Department of Information Engineering, Graduate School of Engineering, Hiroshima University
  • DOHI Tadashi
    Department of Information Engineering, Graduate School of Engineering, Hiroshima University

説明

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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