Abstract:
In Cloud computing multiple cloud users can request number of cloud services simultaneously. Provision must be provided such that all resources are made available to user’s request in efficient manner to satisfy their needs. This resource provisioning can be done by using virtual machines that handles user’s request and provide appropriate services to the requested users. Service interruption occurs when the virtual machine is overloaded. To overcome this problem, black/gray box algorithm is proposed which will automatically migrate to the next low loaded virtual machine without service interruption. By using this, the total physical machine’s load is balanced. Based on the application demands, green computing is used to optimize the number of servers which are in use to reduce the over utilization of power. By making these two approaches to be integrated within CloudSim which enables Cloud computing environment and supports creation of one or more virtual machines on a simulated server facility in a data center, jobs, and their mapping to suitable VMs to achieve load balancing and less energy consumption.

Keywords: Cloud Computing, Virtual Machine, Black/Gray box, Green Computing, CloudSim