NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
ReadyNas won't boot error message lookup_inline_extent_backref+4c
This is a 2016 ReadyNas that has my photos and music on. I'm dissapointed that at only 5 years old there are no options to ask Netgear what the problem is - is it the ReadyNas or one of the disks...
Hi
Firmware (6.10.2). I think its running ReadyNas 6.5. Its nowhere near full.
It will boot readonly.
However it says I need to remove the drives to be able to use it
On the diagnostics log I get
- 2021-03-16 18:21:07: md/raid:md127: raid level 5 active with 2 out of 3 devices, algorithm 2
- 2021-03-16 18:17:54: md/raid:md127: raid level 5 active with 2 out of 3 devices, algorithm 2
- 2021-03-16 18:15:01: md/raid:md127: raid level 5 active with 2 out of 3 devices, algorithm 2
- 2021-03-16 18:06:33: md/raid:md127: raid level 5 active with 2 out of 3 devices, algorithm 2
If a drive has failed its not telling me which.
No apps are installed. In readonly mode it says no volume exists. When not in readonly mode, it fails at about 45% during boot with the message. As far as I can tell apart from the above, all 3 disks are active.
This sounds like a data recovery situation.
Possibly a failed disk (would need to see more logs to confirm whether or not that is the case) and the filesystem won’t mount even read-only.
Possibly a failed disk (would need to see more logs to confirm whether or not that is the case) and the filesystem won’t mount even read-only.
mdgm wrote:
(would need to see more logs to confirm whether or not that is the case)You can download the full logs from the admin web ui (there's a download link on the log page). mdstat.log will give some information on what disks are in the array. You can copy that into a reply if you don't know how to interpret that log. Don't post a link to the full log zip - there is some privacy leakage when you post logs publicly.
But as mdgm also points out, you are seeing file system errors as well as indication of a failed disk. The LCD error on boot also appears to be a crash in btrfs. Other logs would give more info on what is going on.
Netgear does offer a data recovery service ( https://kb.netgear.com/69/ReadyNAS-Data-Recovery-Diagnostics-Scope-of-Service ), and there are some software packages for data recovery out there that support the btrfs file system - ReclaiMe is one. https://www.reclaime.com/default.aspx
If you have a backup, then you can simply start over with a factory default (after getting a replacement disk).
Thanks for the reply.
I think its broke. Not sure if its a drive or the device.
I've just spent some money with MS, a one drive account might be better than trying to persevere with something that isn't supported. What a waste of money and time! I'm dissaponted it isn't supported officially only 5 years after I had bought it.Maybe I can use the disks for something, but I'm on SSD's on my PC's now anyway.
philipcj wrote:
I think its broke. Not sure if its a drive or the device.
Nothing suggests that the chassis has failed. It is possible that a disk failed - we'd need to check the full logs to tell.
Doing a factory reset (with working disks of course) would bring the NAS back, but you would lose your data.
Although your NAS is out of warranty, paid support is still available (via my.netgear.com). Netgear support could potentially mount the volume for you, and as I said above they do offer a data recovery service.
FWIW, RAID is convenient, but it is not enough to keep data safe. You still need at least one backup on another device to achieve that.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
