Among its storage administration features, vmkfstools can be used to copy, convert, rename, import, export and resize virtual disks. Vmkfstools can also be used to set up and manage raw device mappings (RDMs). A full listing of command options can be obtained by typing vmkfstools in a console session. Generally, it is not necessary to log in as the root user to run the vmkfstools commands. However, some commands -- such as the file system commands -- might require the root user login.