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jimcocteau's avatar
Mar 21, 2016
Solved

Recover Deleted Videos Ready Nas104

Hi,

 

I really hope somone out there can help.

 

I just inadvertently deleted 20TB of video from my ReadyNas 104. I am using OS X 10.10.5 is there any way to retrieve?

 

Thanks,

Jim  

 

  • mdgm-ntgr's avatar
    mdgm-ntgr
    Mar 22, 2016

    Bit-rot protection (is a separate thing to CoW but we link enabling/disabling the two). Snapshots use CoW at the point in time snapshots are taken.

    These features can be useful, but they should only be used where appropriate. If you make a huge number of changes in place to files then CoW (Copy on Write - where changes to files do not overwrite the existing data) will lead to a large amount of fragmentation.

     

    There are scripts that can be run to attempt to undelete deleted files, but certainly one can't rely on these. The highest chance of success is where you notice immediately the mistake and cease writing to the NAS. When you write new files to the NAS (or modify existing ones) you will start to overwrite deleted data.

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  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired

    So you don't have a backup? Accidental file deletions is one reason why backups are important if you value your data.

    What did you do exactly that resulted in deleting that much data?

    • jimcocteau's avatar
      jimcocteau
      Guide

      Hi mdgm,

       

      No backup on the NAS, very stupid I know and shall fix this now. It was actually about 100GB, thought I was deleting one small directory only just did not realise....not payng attention...

       

      Jim

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