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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...
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)?
Thanks Stephen,
originally it was 6 X 2 TB disks but after two failed I replaced them with 4 TB disks.
I can't attach a ZIP file, is there a way I can provide the ZIP file with the logs?
Hi Stephen
attached is pfd version of logs
Looks like its RAID6 if I have understood the log
You can't post the log zip file here (and you shouldn't, as there are privacy implications). The dmesg log is ok.
It does look like RAID-6. You'd have needed to upgrade all four disks to 4TB to expand the volume. So /dev/md2 should be the only RAID group for the C volume.
In your earlier screen shot, R-Studio was set to RAID-0 - seems to me that should have been RAID-6.
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