Software

Stochastic Reward Nets Model for Time Based Software Rejuvenation in Virtualized Environment

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Executive Summary

Modern business has a 24x7 non-stop running and the availability of the business continuity for everything, from everywhere, at all time is a growing requirement. System outages are more often due to software fault, than hardware fault. Software availability is one of the weakest links in system availability. Several studies have reported that one of the causes of unplanned software outages is the software aging phenomenon. Server virtualization is becoming so reliable and cost effective solutions for the availability of the business continuity. In virtualization environments, the hypervisor or Virtual Machine Monitor (VMM) itself or Virtual Machines (VM) can fail with software failure.

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