March 19, 20242 yr Hi folks, I have a btrfs raid1 cache pool which store appdata and vm disks. Last night it became read-only filesystem and I follow some guide trying to backup files to other driver. Unfortunately, not all files backup successfully, some files show i/o error (perhaps?). Then I try to re-start array, the pool was unmontable. Here are my diagnostic. Any chance that I can get my data back? So appreciate your help! vault-diagnostics-20240319-1433.zip
March 19, 20242 yr Community Expert Solution If the log tree is the only issue this may help: btrfs rescue zero-log /dev/nvme0n1p1 Then restart the array.
March 19, 20242 yr Author 34 minutes ago, JorgeB said: If the log tree is the only issue this may help: btrfs rescue zero-log /dev/nvme0n1p1 Then restart the array. Thank you! After running the command, my pool now goes back. But it becomes a read-only filesystem, what should I do next? I have do some research before, maybe I should backup files and reformat it🤔
March 19, 20242 yr Community Expert 13 minutes ago, giuem said: But it becomes a read-only filesystem, what should I do next? Post new diags, but likely the filesystem has other issues, and in that case recommend backup and re-format.
March 19, 20242 yr Author 2 minutes ago, JorgeB said: Post new diags, but likely the filesystem has other issues, and in that case recommend backup and re-format. Got it, I will backup. Also I'm curious what's wrong with my pool, here's new diagnostics vault-diagnostics-20240319-1805.zip
March 19, 20242 yr Community Expert Yes, there are other issues, with btrfs it's better to backup and re-format.
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