I have been using an intel “D525mw” intel atom system as a network attached storage system for some time now, I have an extra SATA PCIe card (Silicon Image, Inc. SiI 3132) so that I can connect 4 disks, when the 12TB western digital disk (HGST HUH721212AL) is connected to the external SATA card, it does not show up, meaning, an “fdisk -l” does not bring it up !
So the next thing to do is swap the SATA connection with a different disk connected to the motherboard, and suddenly it works, amazing, but I need to know where the problem comes from
The first theory is that disks that are SFF-8447 compliant (rather than the old IDEMA standard) are not supported by this controller !