Real-Time QoS Issues in Live Migration of Interdependent Virtual Machines

Abstract

This paper, based on papers [1-3], presents and develops a mathematical model to meet the strict QoS constraints of (soft) real-time virtualized distributed applications while their hooting interdependent Virtual Machines (VMs) are undergoing a live migration. To this purpose, it is vital to take simultaneously into account the network resource requirements of a VM live migration, the datacenter SLAs contracts, and the quality of services of migrating interdependent applications. Set of simulations are executed and show that it is possible to respect SLAs contracts in a datacenter and to maintain QoS of interdependent applications while their hosting VMs undergoing live migrations.