A Study on Energy-Aware Virtual Machine Consolidation Policies in Cloud Data Centers Using Cloudsim Toolkit

In cloud computing, many data centers are used to serve the user's service request and lead to high energy consumption. These vast data centers generate high carbon emissions in the environment and high operational costs for the cloud service provider. The method of reducing energy consumption by the data center is called Virtual Machine Consolidation (VMC). In VMC, one host's migration to another saves energy by putting some hosts to sleep mode. There are four VMC methods: overload detection of the host, underload detection host, VM selection, and VM placement. VMC improves the utilization of energy consumption in data centers with maintain Quality of Service (QoS). Since VM consolidation is an important area for research, many researchers are working on it. In this article, we implement and execute the different twenty VMC policies using PlanetLab workload traces in the CloudSim toolkit and perform a comparative analysis of simulation results.