Only 3 disks instead of 4

[WhiteTiger]

Hello to everyone and happy new year.

I newbie with FreeNAS.
I've installed FreeNAS in this environment:
- Chenbro SR30169 CASE
- Motherboard ASRock FMA2A85X-ITX with 2x4 GB RAM
- 4x HD WD Red NAS 3TB

Now in FN I see only 3 HD for ada0, ada1, ada2 when instead in the bios I see 4 HD.
What is wrong?

Thanks in advance

 

[Dusan]

Now in FN I see only 3 HD for ada0, ada1, ada2 when instead in the bios I see 4 HD.
What is wrong?

Did you install FreeNAS to an USB stick as described in the manual or did you perhaps install it to one of the drives?

 

[WhiteTiger]

On USB, but I'm sorry Dusan.
The BIOS reports 4 HD, but I've seen that one of this is defective.
Is a new HD, but maybe it took a shot.

Thanks