Thanks Frank, so I did get the old array into a new build with a trial license, and getting this on the dashboard:     On the Main tab, it says that when I start the array all the data will be overwritten.      Just to be sure you know what I have done up to this point, with disks 1-3, I mounted as unassigned device and transferred most of the data over to the new array. Had I realized that one drive would not mount I would have copied the data, but for