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Forum Discussion
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...
Hi Mountm,
You may want to try checking first your USB drive with your Windows 10 PC and then safely remove after finishing the disk check. Connect it back to your ReadyNAS and see if it is recognized. Here is a link on how to run the disk utility check for win10/8:
http://www.thewindowsclub.com/disk-error-checking-windows-8
Hope this helps.
Thank you for the suggestion. I ran check disk, but the NAS still does not see the USB drive.
I am wondering if at 3TB the USB drive is too large. The NAS is running firmware 6.9.1, so this is unlikely - threads in 2011 or so discussed similar issues with much earlier firmware versions . I may partition the USB drive into 2x 1.5TB drives, but that will defeat the purpose of having a large drive.
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