I made 2 partitions on the primary hard drive that take up all the space. I am now trying to set up the raid but when I go to add the primary hard drive to the array it says
WARNING! There is currently not enough empty space at the end of this disk to create an array. Using this disk in an array will result in loss of ALL data on the disk. "
I guess I can delete a partition and make it smaller. But do you know how much space the array needs?