Hi,I'm using a ReadyNAS NV+ for several years now and I never experienced any problems at all.4 days ago, I rebooted my nas and suddenly I wasn't able to access it from my PC.I launched Raidar to check what was going on and that's what I got :I tried to update the ReadyNas firmware using the USB Boot setup but nothing changed.I ran the Extended Test of the WD Digital Data LifeGuard Diagnostics on each of the hard drives and everything is fine.According to several forums the problem is about TLER and RAID.I read a lot of stuff about TLER removal (using wdtler utility) but people disagree a lot and I don't want to try something crazy and lost my data...So I decided to give it a shot and try to ask some help here, I hope we'll be able to find a fix.Thanks for your help and have a nice day!More informations :HDDs : Western Digital Caviar Green WD20EARS-00MVWB0 2TB (I know they're not on the netgear compatibility list)

I assume you are running raid?Do you have a backup?Have you tried booting up without disk 2?What happens if you click on browse?

Yeah I'm running Raid X.I don't have any backup ( 8TB of data to back up isn't that simple :) ).On the picture it shows that Disk 2 has 12 ATA errors, but actually all the disks are showing that.When I click on browse it just timed out after trying to access the nas content.

I think you should contact Netgear support and ask them about data recovery. Be prepared to pay. I think without a backup you risk compromising any chance of data recovery if you try to fix this yourself. Can you access the boot menu - don't do anything on it, just check to see that it comes up.

Yes it does come up as I used it to upgrade the firmware (USB boot).I also tried to remove the HDDs and put a new one in it then I did a factory reset.Nothing worked.I'll try to contact the netgear support and see what they suggest, but I think that if the HDD isn't in the list of supported drives they'll just refuse to help.

I didn't realise you had done a factory reset with a scratch drive. The outcome of that suggests a problem with the flash.What instructions did you use for the USB boot and which firmware did you use it with?This one?http://www.readynas.com/kb/faq/boot/how ... ash_device

ReadyNAS NV+ inaccessible hard drives

15 Replies

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vandermerwe
Master
May 16, 2015
I assume you are running raid?
Do you have a backup?
Have you tried booting up without disk 2?

What happens if you click on browse?
smokeisbad
Aspirant
May 16, 2015
Yeah I'm running Raid X.
I don't have any backup ( 8TB of data to back up isn't that simple :) ).
On the picture it shows that Disk 2 has 12 ATA errors, but actually all the disks are showing that.

When I click on browse it just timed out after trying to access the nas content.
vandermerwe
Master
May 16, 2015
I think you should contact Netgear support and ask them about data recovery. Be prepared to pay. I think without a backup you risk compromising any chance of data recovery if you try to fix this yourself.

Can you access the boot menu - don't do anything on it, just check to see that it comes up.
smokeisbad
Aspirant
May 16, 2015
Yes it does come up as I used it to upgrade the firmware (USB boot).
I also tried to remove the HDDs and put a new one in it then I did a factory reset.
Nothing worked.

I'll try to contact the netgear support and see what they suggest, but I think that if the HDD isn't in the list of supported drives they'll just refuse to help.
vandermerwe
Master
May 16, 2015
I didn't realise you had done a factory reset with a scratch drive. The outcome of that suggests a problem with the flash.
What instructions did you use for the USB boot and which firmware did you use it with?
This one?
http://www.readynas.com/kb/faq/boot/how ... ash_device
smokeisbad
Aspirant
May 16, 2015
Yes I did use that one.
I used the latest firmware available to download on the official website (ReadyNAS_USB_Flash_Recovery-4.1.14.img).
vandermerwe
Master
May 16, 2015
Did you do the usb boot with the spare disk?
smokeisbad
Aspirant
May 16, 2015
Yep.
mdgm-ntgr
NETGEAR Employee Retired
May 16, 2015
smokeisbad wrote:

On the picture it shows that Disk 2 has 12 ATA errors, but actually all the disks are showing that.

This means that probably at some point you were running old firmware that didn't support drives that don't support TLER. After you updated to firmware that did support drives that don't support TLER the ATA error count would have stopped increasing.
smokeisbad
Aspirant
May 17, 2015
I never saw the ATA error count increase, neither before nor after the firmware update.
Even after the firmware update I was unable to access the NAS content.