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Corrupted BTRFS Drive

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One of the drives in my array has become corrupted and the entire array is shut down. It happened a while ago, but I haven't touched it until recently. I have run BTRFS Check but it stopped after "checking extents".

root@zzUnraid:~# cat /tmp/btrfs_out.txt

nohup: ignoring input

WARNING: filesystem mounted, continuing because of --force

[1/8] checking log skipped (none written)

[2/8] checking root items

[3/8] checking extents

I'm not sure what my next steps should be to attempt recovering this data.

Thanks!

zzunraid-diagnostics-20260615-2355.zip

  • Community Expert

Btrfs user-space utility ran out of RAM and crashed, reboot and post new diags after array start.

  • Community Expert

There's a lot of data corruption being detected on disks 1 and 3, but looks like you are using ECC RAM? Is disk1 the one you were trying to check/repair?

I would start by scrubbing disk1 and disk3 and checking the results.

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