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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...
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.
Sinegraf wrote:Well, now, "this" solution begins to take equivalent energy .. almost more a matter of principle
You can spend your energy doing something that will work, or you can spend your energy chasing something that isn't working. It's up to you.
Note I don't work for Netgear, and I won't engage in a "who's at fault" discussion here.
"Okay" now I have RStudio started.. My first attempt at scaning failed..
and "auto" on the RAID parameters did not work..
-so i am humble and ask .. the basic..
The disk arrangement in NV + v2 is from Left to Right?
Is it standard RAID5? (not 5E, 5EE)
Block order= Left Synchronous
Block size= 64KB
Anyone who is sure that "Parity delay" is not used in any way?
-as I mentioned, I had a brain haemorrhage .. therefore I normally do NOT do this today..
So, I BELIEVE that all the disks were mounted and created the volume created on the disks.. we can assume that this is the case..
worst case, three disks and extended the system with the fourth when the system was originally created for three..
would then the RAID still be "standard RAID5"
Though your parameters look reasonable, I don't know the underlying RAID parameters (and don't own a v2 NAS). I am thinking that you might want to try a different free tool that might correctly detect them: http://www.freeraidrecovery.com/?s=rd Netgear ( JohnCM_S ) might also chime in and tell you what they are.
It'd probably be smart to clone all the drives if you can (since they are the only copy of the data).
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?
can ReclaiMe manage NETGEAR NAS?
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.
I need to study mdadm... :)
it found some mdadm blocks, on the "volyme" but they seem "locked" ..
Thx, Then I have a guide on how it might be possible to open..Short description, for RStudio
forget to try to create traditional "virtual" RAID5 and similar..
concentrate on opening the mdadm volyme, and let RStudio scan the entire volume, The information on how it is created will be found when scanning.. for me, the scan of 8TB took 25 hours
when you choose recover, turn off exporting "hidden / extended attribute's"
expect 15-20 hours per TB
Great tips for those with NAS as the guarantee gone out ;)
Sinegraf wrote:concentrate on opening the mdadm volyme, and let RStudio scan the entire volume, The information on how it is created will be found when scanning.. for me, the scan of 8TB took 25 hours
when you choose recover, turn off exporting "hidden / extended attribute's"
expect 15-20 hours per TBThanks for sharing this info.
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