Right, I have a reply.
As you both surmised, it has a Raid1 configuration which means that although there are two 1000GB Hard drives the capacity is only 1000GB. This I realized, but could not find a way to view that capacity status. Anyway, it is Computer> Rt. Cl on the second Drive (Drive Raid Vol 1)> Properties and the "Pie" chart appears.
I really do appreciate you input. Thanks!