Which target format (thin, or thick) do you want/need?
In case you want to clone the virtual disk as is, omit "-d thin" from the command line.
There are a couple of ways to find out whether a virtual disk has been thin, or thick provisioned. An easy way is to run ls -lisa, and compare the provisioned size (the column left to the time stamp) with the real size in kB (2nd column). If the sizes match, the virtual disk has most likely been thick provisioned.
Understood, but what should I do if its stucked on cloning 100% done for an hour? I can do the vmkfstools copy round no. 2.
I'm not 100% sure about this, but I'd give it a second chance. Maybe it's a result of converting a thick disk to a thin disk!?
André