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jhyland's avatar
jhyland
Tutor
Oct 29, 2016

RN104 External USB disk disconnect randomly

I have a Samsung D3 station 5GB drive that I have connected to the USB 3 drive on my ReadyNAS104.  The backup drive is formatted NTFS. I run 8 backup jobs each night.  Usually they run fine.  Sometimes the backup drive disconnects (don't know why) which causes backups to not complete giving the message "Backup: Error back job xxx: destination cannot be accessed"  There are also log entries of the External storage device disconnecting and reconnecting.  I've had this issue for the past several months.  I've tried this with Disk spin down enabled; and also with it disabled; I get the same disconnection issues.  I'm on the current version of the firmware currently 6.6.0.

 

Any suggestions?  I would like to eliminate the intermittent disconnects of the external drive.

 

Thanks.

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  • FramerV's avatar
    FramerV
    NETGEAR Employee Retired
    Oct 30, 2016

    Hi jhyland,

     

    There is a current investigation regarding USB detection on the new firmware. For now, a work around is to reboot the NAS after connecting the USB.

     

     

    Regards,

    • jhyland's avatar
      jhyland
      Tutor
      Oct 30, 2016

      Hi - Thanks for the info.  Just to be clear I do not physically disconnect the device.  The USB cable remains connected between the nas and USB drive.  At an unpredictable time the NAS reports that it is disconnected from the drive.  Sometimes the NAS will reconnect to it on its own before I notice it (such as when it happens overnight).  If I log into the interface and see that it is not connected, doing a NAS reboot does cause the NAS to "reconnect" to the usb drive.  Is this the issue that you working on?  Or is my situation different?  The most frustrating part is when scheduled backups fail because the NAS thinks the USB drive is disconnected.

      • FramerV's avatar
        FramerV
        NETGEAR Employee Retired
        Oct 31, 2016

        jhyland,

         

        I really cannot tell if its related to yours as well. The issue that we saw was about the NAS not mounting the USB drives properly and a reboot was needed in order to have it mounted. We are still collecting information about it as well.

         

        For the meantime; as a work around, you can probably connect the USB to a PC on the network and setup a back-up job pointing to that PC.

         

         

        Regards,

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