Yes, we do have one common Scratch LUN now that you mention it. Both HOSTS (source and target) can see this scratch datastore.
Most like created for this use.
I'm not a seasoned VM guy yet, as you can tell.
Do I migrate fist to the common datastore, second do a "remove from inventory, third on the new target esx host add it to the inventory, fourth migrate the datastore to the actual datastore that is not a scratch LUN?
Thanks for the reminder.