Cloud Computing Virtual Machine Migration Methodology

In a traditional cloud-based datacentre, several physical machines (PM) host large numbers of virtual machines (VM), which in turn run a wide range of applications and services. VM load changes depending on the various programmes and traffic that users use, and occasionally this traffic may be too much for VMs to handle. Physical machines that host numerous VMs have a limited capacity, and if they become overloaded, their performance could suffer or they could stop functioning altogether. To take advantage of the resources' availability and balance the load, a VM machine that runs multiple apps on a severely loaded PM can be moved to a PM that isn't as busy. If VM migration occurs over a network link that is overloaded with user traffic in data centres where VMs are exposed to a lot of user traffic, it will cause a bottleneck if there isn't enough bandwidth on the link to support the VM migration. To guarantee the bandwidth required for VM migration, there is an obvious need for tools to restrict user traffic on both the source and destination PMs.