I am going through the process of coming up with a plan to move my starwind server over to RAID50 from RAID10 and unfortunately my RAID card wont allow me to do this on the fly so I am going to have to reinstall windows and Starwind (I am on version 5.

I have 4ximg files (all quite big) and I am going to have to copy those off the windows box after unmounting the datastores from my ESXi servers.
I was wondering what the best way to do this is as I don't know if the unique ID in ESXi for that LUn will be unknown when I rebuild starwind.
Also I was wondering if could just install the latest version of starwind and copy the img files back or do I need to upgrade starwind first (which will update the img files) then do my raid50 rebuild?
many thanks!
Paul