VMDK disk type

The VMware VMDK drivers support the creation of VMDK disk files of type thin, thick, or eagerZeroedThick. Use the vmware:vmdk_type extra spec key with the appropriate value to specify the VMDK disk file type. The following table captures the mapping between the extra spec entry and the VMDK disk file type:

If you do not specify a vmdk_type extra spec entry, the default disk file type is thin.

The following example shows how to create a thick VMDK volume by using the appropriate vmdk_type:

$ cinder type-create thick_volume
$ cinder type-key thick_volume set vmware:vmdk_type=thick
$ cinder create --volume-type thick_volume --display-name volume1 1