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Forum Discussion

Sinegraf's avatar
Jul 07, 2019
Solved

no network after lightning strike

No network link no network activity lights USB backup works So disks and RAID systems work (Raid5 4x3TB now 4,2/8,1T free)   So a simple solution could be to move the disks to a new 4Bay Read...
  • StephenB's avatar
    StephenB
    Jul 21, 2019

    Sinegraf wrote:

    NV + v2 RAID had the latest available software for that model ..
    Now I don't know if it meant X-RAID gibbrich ..
    If it has X-RAID, it is probably the "writing order" that is special
    the writing order can be affected by "parity delay"
    Someone who knows if it is 100% normal (RAID5 standard) or a separate secret rule?

     


    Your NAS uses software RAID (mdadm).  XRAID is layered on top of mdadm - it manages RAID groups for you automatically (which allows for expansion of the array).  But underneath it is just mdadm - there is nothing proprietary about the on-disk structures. 

     

    FWIW, it sounds like R-studio isn't finding the mdadm superblock. It's possible that the superblock was corrupted when the lightning stuck.  Though I'd have expected an error on the LCD panel if that were the case. 

     

    As I said earlier, I don't know what parameters are used when the array is created.  

     


    Sinegraf wrote:

    can ReclaiMe manage NETGEAR NAS?

     


    Folks have used it for OS-6 ReadyNAS (which uses the BTRFS file system). I don't recall seeing it used for OS-5, but it likely would work.

     

    The free tool I pointed you too will only find the RAID parameters.  The paid version is needed to recover files.  However, you can alternatively download the paid version, and see if it can recovery anything before you actually purchase it.

     

    You could also contact R-Studio support, they might know the parameters used by your NV+ v2.

     

     

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