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RN104 fw:6.9.0 fail startup after RAID expansion
Had 3x 4TB drives and was getting close to hitting capacity. Added a 4th 4TB drive and waited a couple days for resync. At some point I saw RETRY STARTUP, and cannot power off without pulling plug....
Whompin105 wrote:
Any ideas about what might cause the non-fresh disk being kicked from the array?
Non-fresh means it's not in sync (meaning some writes never made it to the disk). So the real question is why it's not in sync. Was the NAS forcibly shut down before this (or suffer a power failure).
It is possible to force the array to assemble anyway. Though being out-of-sync could result in some file system corruption/loss.
can you copy/paste mdstat.log into a reply here?
I have tried to, but whenever I reload the page the reply post disappears. I've tried sending it in a PM
This tells us that the OS partition has expanded to all four disks. It's not clear why the horizonal expansion failed.
The volume is likely out of sync at this point, but there could be other things wrong.
Have you ever used the linux command line interface?
Whompin105 wrote:
I have tried to, but whenever I reload the page the reply post disappears. I've tried sending it in a PM
There is an automatic spam filter that sometimes kicks in. Periodically the mods review the quarantine queue and release false positives.
I can also release them, so you can PM me if it happens again.
I'm fairly comfortable on a Linux terminal, but haven't used the CLI to interface with the Netgear NAS before. It looks like I can SSH into the NAS as root, but I haven't played around enough with btrfs to know where to start diagnosing the filesytem.
You can try downloading the full log zip file from the NAS web ui, and look in the various files for errors.
Similarly, you can explore the logs via ssh using journalctl.
The NAS uses mdadm to create the RAID array, and then creates the btrfs file system on top of that.
I think that filter must just not like me very much. I'm comfortable using Linux CLI, and I am able to ssh into root on my ReadyNAS. I
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