A Survey on Energy-aware Dynamic Virtual Machine Consolidation in Cloud Data Centers

Cloud computing is an emerging technology, and it allows users to pay as you need and has the high performance. Cloud computing is a heterogeneous system, and it holds a considerable amount of application data. Green Cloud is an advanced scheduling scheme to reduce energy consumption. Green Cloud Computing is the evolving need in industries and research areas. Green cloud computing is virtualized computing platform and it is a scalable use of computing resources. Cloud computing possess privacy concerns because the service provider can access the data that is on the cloud any time. It could be accidently altered or delete the information. Since the VM consolidation problem is strictly NP-hard, then proposed online optimization algorithm i.e. Ant Colony System to find a near-optimal solution based on a specified objective function. The AVVMC consolidation scheme proposes the ant colony optimization with a balanced usage of computing resources based on vector algebra. This survey contains the survey of virtual machines consolidation using different way by various authors.