This option creates a Raw Device Mapping (RDM) file on a VMFS-3 volume and maps a raw disk to this file. After this mapping is established, you can access the raw disk as you would a normal VMFS virtual disk. The file length of the mapping is the same as the size of the raw disk it points to.

-r --createrdm device

When specifying the device parameter, use the following format:

/vmfs/devices/disks/vml.vml_ID 
Note

All VMFS-3 file-locking mechanisms apply to RDMs.