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Forum Discussion

chokobanana's avatar
Dec 13, 2016

GPT Drive not recognized on RN102

I just purchased a 3TB external drive (2.5 inch usb powered). The drive is recognized by the NAS when formatted as MBR (2TB) but whenever I reformat the drive as GPT the NAS won't detect it. I've tried using both the front USB port as well as the back USB port. I've also tried formatting the drive as a single volume (gpt) and not creating a volume at all (gpt) but the NAS won't detect the drive using either method. If I format the drive as MBR (2TB) and reformat inside the ReadyNAS GUI it is still an MBR drive (Not GPT as I would have hoped).

 

Is GPT not supported? I'm running the latest firmware 6.6.0.

 

The log outputs this when the drive is MBR:

 

Tue Dec 13 2016 21:52:37
System: External storage device disconnected.
Tue Dec 13 2016 21:48:41
System: External storage device connected.

 

When I connect the drive as GPT nothing is output. (like if the drive was never connected)

5 Replies

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  • Is GPT not supported?

     

    This is dependent of USB adapter. Some of my USB adapters are OK with GPT, some not.

     

     

    • chokobanana's avatar
      chokobanana
      Guide

      USB adapter as in the external case of the HDD?

      Meaning, purchasing a different brand may have worked better?

       

      Or do you mean the USB adapter of the RN102?

      • chokobanana's avatar
        chokobanana
        Guide

        I should add that I formatted the drive as NTFS.

        I also tried the connecting the drive as GPT (1 volume, 3TB) to my Synology 916+ and it detected the drive just fine.

        Since RN102 detects the drive when formated as MBR I think this is software issue.

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