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Forum Discussion
ReadyNAS NV+ v2 No volume or files -possible RAID rebuild advice
Model: ReadyNAS NV+ v2 Firmware: RAIDiator 5.3.13 Raid Type: X-RAID2 A friend has asked me to troubleshoot why he can no longer access any of the files stored on his NAS drive. All drives are s...
Hi StephenB & thanks for the response.
Not sure as to the history of disk replacements (if any) but the current drives are Seagate ST31000524AS (931GB) in both bay 1 & 2, Seagate ST2000DL003-9VT166 (1836 GB) in bay 3 & Western digital WD10EARX-00N0YB0 (931GB) in bay 4.
I could certainly test each drive & even try recovering from them, either via ReclaiMe or Linux, but having read several other posts on here that advise not to do this as it could make it harder if professional help is required, would I not just be better of contacting support to see if they can rebuild the volume? Should this be the best option, please can you advise as to how best to do this as I did try to contact them prior to trying on here (using https://www.netgear.com/support/contact.aspx) but was not sure as to the exact option to report it under and not knowing the purchase date could not proceed further anyway. Is this the correct procedure?
Thanks again.
It is safe to test the drives using Seatools and Lifeguard, that is non-destructive. Just make sure the NAS is powered down while you are testing the drives, and return them to the same slot.
Knowing the drive health will give you some idea on whether data recovery is possible or not.
Have been unable to check the drives as neither of the tools seems to find the drives in the scan for some reason. However, have managed to use Macrium Reflect to make disk images of disks 2,3 & 4 but disk 1 failed with multiple bad sectors.
As far as number of disk failure messages on the NAS, it would appear to be as I thought! User was not aware of NAS control panel & email notifications had not been setup so he was unaware of any problems. The only drive replacement listed in January was not actually a replacement but just him taking a drive out to try & copy info off, before returning to same slot again! No drives were replaced during any of the previous alerts.
Would I be right in guessing that with drive 2 appearing to fail & drive 1 exhibiting bad sectors, this may be main reason for complete NAS failure? How does this bode with regards to possible recovery?
Now that I have images of 3 of the disks, I am considering plugging all drives into a PC with 4 sata ports & trying ReclaiMe. Any advice for/against?
scb31 wrote:
Would I be right in guessing that with drive 2 appearing to fail & drive 1 exhibiting bad sectors, this may be main reason for complete NAS failure? How does this bode with regards to possible recovery?
If two drives fail (or if one drive fails during a resync operation) then the RAID volume fails . Recovery depends in part on how much data was correctly transferred to the clones. The RAID array might also be out-of-sync, which would also get in the way. I suspect there will be some file system corruption, so you might not be able to get back everything.
scb31 wrote:
Now that I have images of 3 of the disks, I am considering plugging all drives into a PC with 4 sata ports & trying ReclaiMe. Any advice for/against?
I've seen some folks report positive outcomes with ReclaiMe here. So far I haven't seen any negative comments about it.
scb31 wrote:
Have been unable to check the drives as neither of the tools seems to find the drives in the scan for some reason.
That is quite odd, and not something I've experienced. Could it be an issue with your USB/SATA adapter?
Apologies for delay in updating this topic, been busy!
Would just like to give a positive review with regards to ReclaiMe. Purchased this for client & managed to recover the majority of his files, losing just one or two spreadsheets which must have been stored in the worst of the bad sectors.
One last question though as client has asked me whether I can rebuild ReadyNAS (with new drives!) but not in RAID configuration. Can it be configured just as four separate backup disks? Not sure as to validity of this request but can understand that client has lost faith in RAID & thinks (simply) that four separate backups would be better! Advice?
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