Forum Discussion

Aspirant

Jan 04, 2018

3TB usb drive cannot be mounted as the file system is not recognised by readynas312

When I connect a 3TB USB drive to a rear USB3 port, my 2-bay Readynas312 sends me an email that says External storage device is connected but the file system is not recognized. The Western Digital 3...

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StephenB

Guru - Experienced User

Jan 04, 2018

If it was formatted by Western digital, you could try reformatting it in the PC. Sometimes vendors use multiple partitions, which can confuse the NAS. You can see the partitions via windows disk manager (and you can delete them all, and then reinitialize the disk from there).

Since the disk is empty, you could also try formatting it in the NAS. Though I think you'll get more status info if you use a PC.

mountm

Aspirant

Jan 05, 2018

Thank you for your suggestions. Windows says there is just one 2.72TB partition, all of which is reported as free. Using my PC I first did a quick format without joy, then a full format. It took a while, but still no change. The NAS does not see the USB drive so I can do nothing to it using the NAS.

mdgm-ntgr
NETGEAR Employee Retired
Jan 05, 2018
What happens if you connect it to the USB port on the front?

If you download the logs what is the date in bios_ver.log?
- mountm
  Aspirant
  Jan 05, 2018
  Connecting to the front USB makes no difference. The bios_ver.log says To Be Filled By O.E.M. /sys/class/dmi/id/bios_date 11/05/2013 /sys/class/dmi/id/bios_version 4.6.5
  - mdgm-ntgr
    NETGEAR Employee Retired
    Jan 05, 2018
    You've got the latest BIOS.
    
    What does your partitions.log look like?