Proactive Software Rejuvenation Solution with Enhanced VM Migration Decision in IT Infrastructure

Abstract

The availability of IT infrastructures is still a huge challenge nowadays. As server virtualization is used as an essential software infrastructure of various software services in IT environment and it is emerging as a technique to increase system reliability and availability. To prevent system failures caused by software aging, software rejuvenation can be applied in virtualized environment. Software aging of virtual machine monitors (VMMs) is becoming critical because performance degradation or crash failure of a VMM affects all virtual machines (VMs) on it. Live VM migration enables a running VM on a host server to move onto the other host server with very small interruption of the execution. VM migration depends on a variety of criteria and efficient decision support is required. The work presented in this paper aims to offer the high availability against software aging of virtualized server system by providing VM migration based VMM software rejuvenation solution. First, we present the resource usage as accepting as many services as in virtualized environment which support of VM migration. Second, we present migration based VMM rejuvenation analytic model and evaluate the steady-state system availability based on familiar Markovian analysis through the use of numerical analysis.