Thanks to both you and Janet. I'm sure Janet is right, but since I am at this point, I would like to solve without having to go to a new install, if possible.
With one SATA drive installed, here is what I get:
[root@provue-server ~]# fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00073e9d
Device Boot Start End Blocks Id System
/dev/sda1 * 1 32 256000+ fd Linux raid autodetect
Partition 1 does not end on cylinder boundary.
Partition 1 does not start on physical sector boundary.
/dev/sda2 32 121602 976506583 fd Linux raid autodetect
Partition 2 does not start on physical sector boundary.
Disk /dev/md1: 999.8 GB, 999806730240 bytes
2 heads, 4 sectors/track, 244093440 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 3072 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/main-root: 996.7 GB, 996650516480 bytes
255 heads, 63 sectors/track, 121169 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 3072 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/main-swap: 3154 MB, 3154116608 bytes
255 heads, 63 sectors/track, 383 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 3072 bytes
Disk identifier: 0x00000000
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 8023 MB, 8023703552 bytes
247 heads, 62 sectors/track, 1023 cylinders
Units = cylinders of 15314 * 512 = 7840768 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 1 1023+ ee GPT
Partition 1 does not end on cylinder boundary.
/dev/sdb2 1 640 4896256+ 7 HPFS/NTFS
Partition 2 does not end on cylinder boundary.
/dev/sdb3 * 896 897 9283 ef EFI (FAT-12/16/32)
Partition 3 does not end on cylinder boundary.
/dev/sdb4 * 897 1024 968687+ ef EFI (FAT-12/16/32)
Partition 4 does not end on cylinder boundary.
Disk /dev/md0: 262 MB, 262078464 bytes
2 heads, 4 sectors/track, 63984 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 3584 bytes
Disk identifier: 0x00000000
[root@provue-server ~]#