Virtual machine migration in self-managing virtualized server environments

A challenge that comes with server virtualization is how to effectively manage capacities of virtual machines to increase resource utilization while ensuring that the service level objectives (SLOs) of applications running on them should be satisfied. Migration is a good technique to address this challenge, which is transparent to the applications and supported by most of modern virtual machines. In this paper, we consider an automated strategy for virtual machine migration in self-managing virtualized server environments. Moreover we propose an optimization model based on a linear programming (LP). Finally, experimental examples show that our approach can be applied to effectively determine which virtual machines should be migrated and on which physical machines to host them while minimizing operational and migration costs.