According to the Netgear HCL, the 3TB Barracuda 7200.14 ST3000DM001 is compatible with the ReadyNAS Pro4. Caveat is that Firmware CC4H should be used.
It appears that the CC4H firmware update is only available for the ST3000DM001-9YN166 (9YN166 is the part number).
Seagate recently seem to have moved over to selling the 3TB drive with a new part number ST3000DM001-1CH166 and Firmware CC43. The CC4H firmware can not be applied to this drive using the standard upgrade utilities provided by Seagate - thy indicate that the drive is not compatible with the CC4H update.
This begs the question whether the newer ST3000DM001-1CH166 with Firmware CC43 is also "Compatible" / Certified by Netgear under the HCL entry for the 3TB Seagate ST3000DM001.
(4 of these drives do actually appear to work in a Pro4.)
