A modelling & Simulation via CloudSim for Live Migration in Virtual Machines

Abstract In growing era of cloud computing, one major utility is better and improved performance. For which Cloud Computing is a model which provides various resources available in a pool from where the users can get available the same when required. In the overall process there can be an important issue that is Fault tolerance to provide the high availability for the process which is being required by the user. And simultaneously if any fault occurs then user might not found any server downtime and other kind of delay in getting the response. There are many compute nodes such as Virtual machines further controlled by the Hypervisor. For transferring the load among compute nodes can be done by Cold Migration earlier there was a technique Non-Live migration. But at the same time there were lot many issues and challenges with the same that user might get the server downtime for infinite delay. For overcoming that there is an on-going technique which is known as Hot Migration or Live migration. It allows system administrators to shuffle the load available on an operating system instance to other Guest Operating system instance without any intervention on hosted service. This approach benefits to provide and efficient online system where no downfall in server maintenance. It also cures the load balancing, reconfiguration of data centers. The simulation of above aforesaid concept has been done via Cloudsim a tool for modelling and simulation in Cloud computing environment for live migration of virtual machines without intervention of cloud services. This paper simulated the work and gives the efficient results in comparison to the existing techniques.