GUI Edit virtual machine Storage Assign virtual disk

Field	Description
Size	The size of the hard disk and units
Datastore tier	Optional. Storage service level
Allocation type	Optional. Allocation type of the disk.
Controller type	The controller type of the disk
Controller	Optional. On supported hypervisors (ESXi), to force the creation of a new controller of the same type as an existing one, assign a new bus value. Access ESXi to confirm bus values.
Bus	Optional. Select an existing bus number or to create a new controller, specify a new bus number. The user requests a bus number but the platform will use the bus number assigned by ESXi. When there is more than one controller, to identify the controller and bus number, the platform displays the bus number as a suffix to the controller. Access ESXi to confirm bus numbers that are not displayed
Name	The name of the hard disk