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Forum Discussion
Readynas Duo 4.1.12 all configuration lost after power outage
I have 2 1TB drives with 750GB partition sizes running in mirrored fashion. After a power outage today, I noticed my credentials did not work for admin nor could I see any data on the network shares....
Hi Jbrooksga
Welcome to the Community!
The power outage might have contributed on the issue but certainly the NAS will not perform a Factory reset on it's own. Possible cause would be the RAID got out of sync or a disk failure due to the power outage and that is why a re-sync has initiated when it got back online. Taking out the disk during re-sync might not also be the best thing to do. Where you able to get logs before this happened?
You may want to try and contact Support for checking and Data recovery but there will be charges for the service, You can also try using Third party recovery softwares like ReCLAIMe which most of the members here have used.
if you want to contact Support you can always login to your MyNETGEAR Profile by going to my.netgear.com.
Hope this helps!
Regards
Marc_V wrote:
You can also try using Third party recovery softwares like ReCLAIMe which most of the members here have used.
R-Studio is a less expensive option that you could also try (since your NAS doesn't use BTRFS).
But maybe first try powering up the NAS with only disk 2 installed (in slot 2). Use the boot menu option to skip the file system check.
I have mounted both drives using utilities on both PC and Mac, but apparently both were initialized (or in the process of that)
My only saving grace appears to be that 6 months ago I replaced one of the drives due to increasing reports of smart errors. Most of the data I wanted to retain was unchanged since that time. I'm currently using extFS on a Mac to read and copy the data from that retired drive. There might be a few errors to deal with, but much better than losing everything.
Pulling the drive was the absolutely worst thing you could have done. Yes, something went wrong when the power went out. And the NAS was in the process of repairing that when you interrupted it. It's possible it wouldn't have succeeded, but you should have let it try.
Because re-sync requires a lot of drive activity, there is a chance your previously removed drive wouldn't survive it. So it's good that you're backing up all data instead of just putting the old drive back in and trying to re-sync another drive.
As you learned with this, RAID isn't enough to keep your data safe. It keeps your data accessible during routine disk replacements, but the only way to keep the data safe is to back it up to at least one other device. Personally I have at least two backups of anything I care about.
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