Convert your disks into the thin format with the VI-Client

Is it possible to make your VMDK’s thin with the VI-Client? Just figured out how to create a thin grow able disk with the VI-Client. I created a normal virtual machine with a default disk and installed Windows 2003 as a guest. I converted the VM to a template with a thin disk. I copied both the VMDK files to another empty VM without any disk. After that I attached the thin template disks and started the VM. In the guest OS I can see the original size but the VMDK stays small. I didn’t had the time to test it any futher and haven’t seen it grow. You can also use the command line :

vmkfstools -i /vmfs/volumes/vmfs4all/Eric/Sloof_disk.vmdk -d thin /vmfs/volumes/vmfs4all/Eric/Sloof_disk.vmdk