Hi Dangingerich,
You can move the VMDKs individually with the Advanced Feature of Storage vMotion this will allow you to place the data drive on your new storage and then have the OS drive follow.
Youtube Video - https://www.youtube.com/watch?v=uhdmdcMmvas
Screen shots
When you are svMotioning click the Advanced Button
You here you can select the individual VMDKs and move them around.
All the content comes the youtube video by Paul Braren, I only annotated his work.
Have fun
@iiToby
