I'm new to Unraid, and I'm having some issues recognizing SATA drives in my setup. Specs as follows:

 

Supermicro X11SCH-LN4F Motherboard

Xeon E-2176G Proccesor

U-NAS NSC-810A Chassis

8x8TB WD Spinners

2x1TB M2 Intel 660P Series (for cache)

2x16GB MEM-DR416L-CV02-EU26 Supermicro Memory

 

Everything boots fine, but when I do an fdisk -l at the command line, none of the SATA drives are recognized (Both of the intel drives are though). BIOS settings are set to AHCI boot mode. I'm using the U-NAS backplane, but I've also plugged multiple drives directly into the motherboard, no change. I think the drives came formatted as NTFS, but I didn't think that would matter, but please correct me if I'm wrong. I can plug these drives into another (windows) system and they show up just fine. Anyone have any ideas what's wrong?

 

EDIT:

Using Unraid version 6.6.7 

Edited March 10, 20197 yr by Unluck

You don't specifically mention. Can you see the disks in the BIOS?

I just checked and it doesn't list them, but it doesn't list the intel drives either.

Are this disks actually spinning? You don't say what make/model they are but try Googling "SATA 3.3V pin" and see if that helps.

They are 8TB drives shucked from an external enclosure. Looking at the google results this looks like it's porbably the right answer. I just checked and the drives are not actually spinning at boot, don't know how I missed that. I'll try taping over the pin 3 as suggested in a few other place and mark as the solution if this fixes it! thanks for the tip! I've shucked quite a few external drives and never ran into this before.

I have had some issues with my cables. Try to re-seat them or replacing them. It worked for me a few times.

On 3/10/2019 at 3:02 PM, John_M said:

Are this disks actually spinning? You don't say what make/model they are but try Googling "SATA 3.3V pin" and see if that helps.

This is what it was. Kapton tape over pin 3, working like a charm. Thanks!