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ReadyNasUltra 4 dead #26795494
One of the disk was showing increasing Smart errors, so I ordered a replacement disk (ST3000VN000) -to replace the failing disk. No big deal I thought.
I had assumed that the failing disk was disk4 - a 3Tb Seagate disk I'd ad some smart errors on before - as I didn't read the emails closely enough.
When I was getting an email every few minutes, I shut down the NAS to wait for the replacement disk. It arrived, and I replaced disk 4 with the new disk, and booted up. The system stayed at booting for some time - whilst I now read the message which made it clear that the failing disk was Disk 1. I powered down the NAS.
I now replaced the original disk 4 - a ST33000650NS and rebooted. This appeared to work, and the Nas came up and the SMART error messages flooded in.
I decided to hotswop the failing disk, Disk 1 (ST2000VN000-1H3164). Then it all started to go wrong.....
I get the messages in the following order:
Disk removal detected - Disk1
Raid event detected - Data volume will be rebuilt with disk 4
New disk detected Disk 1
Raid event detected - Data volume will be rebuilt with disk 1
Then nothing happened - no raid sync on the volume, and most of my files dissapeared. I downloaded the logs using frontview, and then looked at the volume status - which showed that the X-raid was dead, and that I had two spare disks. That was midnight, so I left the NAS until this morning. (No sleep - a lot isn't backed up.....)
This morning the NAS appeared to have dies - though I could look at front view, I couldn't refresh it - and the NAS front panel couldn't be brought to life. I've now powered it down and asking for help. What's the next step?
I wonder if I can replace the faiing Disk1 back in order to rebuild the raid array, and when that's done replace it, taking any data hit as getting the Raid array back is the priority.
Netgear support managed to rebuild the array remotely, using mdadm and then mount the array.
Powered off, removed the bad disk 1 and rebooted with only disk 2,3 and 4 and then could access with fontview.
Put the new disk in disk1 slot, and the raid array has re-synched and we're now back online, all data intact (AFAIK).
Now looking at implementing crashplan on the Ultra4 - though not sure how long it would take to upload data!
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If you have a backup (or are ok with losing data) then I'd suggest doing a factory reset, which will do a fresh factory install.
You'll need to reinstall any add-ons, and reconfigure the NAS, and restore the NAS data. This will take a while, but will get everything back to a known/clean slate.
Another option is to contract with Netgear. With per-incident support they might be able to remount the volume. Data Recovery would be its own (and more expensive) contract.
Not all the data is backed up - that's the issue - so I'm not really happy with losing the data.
I've created a support case 26795494, and uploaded the logs - though if anyone else has any ideas I'm happy to hear them.
It's pretty difficult to find out how much this service costs - only by searching the forums, and then it's "about"
Hello garethjjones,
The per incident contract is GBP60 good for 1hr but this will possibly fall under data recovery service. Let's see what support center can offer.
Regards,
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