operating system virtualization

Unlike hardware virtualization and para-virtualization, the virtualization of Operating Systems only permits the creation of several virtual instances of an operating system on a physical system, however, it does not allow running different guest OSs. Operating System virtualization, also called OS level virtualization or shared OS virtualization, virtualizes servers on the operating system kernel level. This virtualization method forms isolated partitions or virtual environments (VE) on a single instance of physical server and operating system.