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Forum Discussion

FG's avatar
FG
Aspirant
Aug 03, 2018

NAS does see both USB drives

I have docking station for 2 full size hard drives. When I connect this dock via USB to any of my computers both drives are easily accessible/read-able/view-able on a windows OS.

 

When I plug the same dock into the front USB port 2120 NAS, it only sees 1 of the drives.  Actually, it does not matter which USB port you plug into, same results everywhere.

 

Why does the NAS not see the 2nd drive?

5 Replies

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  • Marc_V's avatar
    Marc_V
    NETGEAR Employee Retired

    Hi FG

     

    This is possibly because only one SATA connection can be detected at a time on the USB port of the NAS. The USB driver might be limited to one connection or SATA only.

     

    We might need to have this checked so we can have the best answer.

     

     

    Regards

    • FG's avatar
      FG
      Aspirant

      Are you asking me to upload my log files?

    • StephenB's avatar
      StephenB
      Guru - Experienced User

      Did you try the rear ports?  They are different (USB 3.0 instead of USB 2.0), and might behave differently with your dock.

       

       


      Marc_V wrote:

       

      This is possibly because only one SATA connection can be detected at a time on the USB port of the NAS.


      Of course the NAS isn't seeing SATA, it's seeing a USB drive.

       

      From the NAS point of view your dock looks like a USB hub with multiple USB drives attached.  I've seen other cases (particularly with legacy NAS) where USB hubs had similar problems.  In some of those cases, using a different hub worked.

       

      If you happen to have a standalone usb hub (usb 2 or 3), you could try putting that hub in between the NAS and the dock as a test (just to see if the NAS detects both of the drives).  It's a long shot, but easy to try.

       

      You could also try connecting multiple USB drives to a hub (if you have them), and see if the NAS detects those properly.

      • FG's avatar
        FG
        Aspirant

        Yes, I have tried all the ports, like I stated in my orginal post.

         

        Thank you for the suggestions, I will try those.

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