Thanks for the quick reply Martin
Thats the problem. The VMs are only the local storage also.
I was thinking. I have a spare slot for another HD. What I was going to do was plug another drive in by itself into the Dell server and install ESXi on it.
I was then going to power it down and add the other disks and then I should be able to import them back into the host?
The other option I was thinking about was installing ESXi on a USB drive ?