I recently acquired a Supermicro Box with a Areca ARC 1261 ML. I have installed 16 X Seagate ST4000VN000-1H4168 (4TB Drives). The ARC 1261ML controller only sees 2TB of usable space on the 4TB drive. When attempting to build a new RAID array, I enable 64-bit LBA for greater than 2TB support, and still only 2TB of each disk are usable.
What might cause this?
Controller Card Information: