An energy-saving load balancing method in cloud data centers

Abstract

With the development of virtualization technology, data center virtualization in Cloud Computing gradually become a hot topic. In the premise of ensuring users' SLA, this paper considers the utilization of server resources, whose objective is to minimize the number of opening servers. We propose an energy-saving strategy based on live virtual machines migration. Our ARMA-based load forecasting reduces the occurrence of virtual machines' migration caused by instantaneous load peaks. Then we select migration virtual machines and destination servers based on our proposed algorithms. Finally, the data center reaches a load balancing state. The experiments show that the strategy can improve server resource utilization and reduce energy consumption. © Springer Science+Business Media Dordrecht 2014.