Why is the 9650SE RAID1 not showing the full size of the disks?

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http://serverfault.com – This is a follow-on to How can I grow a 3Ware 9650SE RAID1 under ESXi 5.0? I've successively replaced 1TB drives in my RAID1 with 2TB drives hoping that I can grow the datastore I've got in ESXi 5.0. After replacing the drives, and letting the rebuild finish, I can boot into ESXi (the RAID is also the boot partition) but partition tools (both the ESXi maintenance partedUtil and a gParted boot disk) show the RAID being the original sub ~1TB size. What do I need to do to allow OSs, particularly ESXi, see the unused portions of the drives? EDIT As MDMarra suggested below, I had tried the CLI (HowTos)