4 Ways to Avoid Server Overload Caused by Virtualization As virtualization goes deeper into corporate operations, including for resource-intensive and mission critical tasks, IT managers learn that high virtual-to-physical server ratio is simply unfeasible. in Public bookmarkswith server_overload Note: As virtualization goes deeper into corporate operations, including for resource-intensive and mission critical tasks, IT managers learn that high virtual-to-physical server ratio is simply unfeasible.