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Forum Discussion
RNDU6000 file recovery
My RNDU6000 died, stuck on Ready NAS at boot after power supply failure. All disk's working in Windows environment thus I don't belive file have been corrupted.
Is there a way of recovering the fi...
IMA100 wrote:
All disk's working in Windows environment thus I don't belive file have been corrupted.
The RAID array can fail even if the disks are ok - for instance if cached writes are lost, then the array can fall out of sync.
R-Studio and Raid Recovery, but neither work. With R-Studio I can see the volumes but can't recover the files.
R-Studio should be working - are you connecting all 6 disks in the Ultra to the PC? Was your system using XRAID or FlexRaid?
If you purchase a new OS-6 ReadyNAS (with at least 6 bays) you can temporarily mount the Ultra's RAID array and offload the data. https://kb.netgear.com/29957/ReadyNAS-Migrating-disks-from-RAIDiator-4-2-to-ReadyNAS-OS-6-x86 Though if the RAID array is corrupted you'd need to purchase data recovery. https://kb.netgear.com/69/ReadyNAS-Data-Recovery-Diagnostics-Scope-of-Service
Seagate also offers a data recovery service - you ship them the disks, and only pay if they recover files. They offer it for any disk, not just Seagate. I've never used it, so this isn't a recommendation - just a suggestion on something you could follow up on.
Thank you Stephen.
I can't remember if I set the RAID as RAID-X or FlexRAID.
The original fault was caused by the power supply failing. When I replaced the power supply the system would not boot up, I think the power supply failure caused damage on the motherboard. As the NAS was not performing any data transfer at the time of power supply failure, I am hoping there is no damage to the RAID array.
In R-Studio I can see the Volume sets, see attached, but the files I recovered are not the pictures and videos I have stored.
The low level recovery is taking a long time because I don't know the RAID structure, i.e. Bock order/size, parity structure etc.
It's left-symmetric with 64k chunk size. If all disks are the same size, then XRAID would be RAID-5. If two disks are bigger than the rest, then some RAID groups would be RAID-1.
The number of RAID groups depends on the expansion history.
Do you have a log zip file (ok if it's old as long as it's newer than the most recent expansion)?
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