Scripting and potentially scheduling operations provide essential benefits to a migration and backup plans but they also have the added benefit of minimizing resource consumption. If the softwares user interface is not being rendered, refreshed with a progress bar or status, caching elements and everything else that comes with displaying a view, then that is less resources that are being consumed on the host. Less resources for a visual presentation means that more resources can be used for the operation. Please remember the previous section where issues may arise if too many concurrent instances or parallel operations are running.
