I saw this KB from 3Ware and being that it is a 9500 series you may want to try to enable the Auto Carving to see if you will see the 2 seperate arrays then you can add them together in the disk manager. I was thinking there would be an option for LBA 64bit mode but not an expert on the old controllers.

http://www.3ware.com/KB/article.aspx?id=13431