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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 ReadyNAS 214
Will it work .. how do I get it to work
would be nice with some "pug and play"


  • 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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  • Marc_V's avatar
    Marc_V
    NETGEAR Employee Retired

    Sinegraf

     

    Welcome to the Community!

     

    Sorry to hear about that but it's good that you can do the USB backup, Have you checked if your switch or router is working where the NAS connects? Yes, if you are planning to upgrade your NV+ RN214 or better is a good choice, transferring the disks can be done by following these steps. If you want it to be plug and play for the disks, you may need to find a healthy NV+ online but upgrading to OS 6 is still better.

     

    Alternatively, you can backup the data, transfer the disks to the new NAS and set it up fresh. 

     

     

    HTH

     


    Regards

     

     

     

    • Sinegraf's avatar
      Sinegraf
      Guide

      It feels like the safest way is to take a 5TB USB disk, make a backup.
      Check the backup so "everything" is included


      move the disks to a 214.
      format and redo.

      Unless everything is included in the backup, I can try to migrate the information

      • StephenB's avatar
        StephenB
        Guru - Experienced User

        Sinegraf wrote:

        It feels like the safest way is to take a 5TB USB disk, make a backup.


        That would only work if the backup button was already provisioned to back up the full NAS (since you have no network interface you won't be able to set that up now).  If no jobs were set up for the backup button, then pressing it does nothing. 

         

        I would back up the system first if you can.  But I wouldn't start over with a factory default on the new NAS unless that was actually needed.  So I'd look in the log zip file first, and see if there any disk or btrfs errors in system.log or kernel.log.  I'd also look at the SMART settings in disk_info.log  If I saw something, then I probably would start over.

         

        Note that you can make a backup after you migrate to the RN214 (and you should certainly put a backup plan in place).

         

    • Marc_V's avatar
      Marc_V
      NETGEAR Employee Retired

      @Sinegraf

       

      Yes, if you want to go that way that is an option too Smiley Happy Though you have to make sure your disks are healthy so as to not have any issues upon formatting it on the new NAS.

       

       

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