Hi folks, So I just ran into this: https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID#Making_the_harddisks_read-only_using_an_overlay_file This is a device mapper overlay file - not overlayfs. For the repairs that are sometimes uncertain what's next, maybe this is a viable option to avoid changing the file system? I'm thinking chunk-recover might take up too much space, I'm not sure how that one works, if chunks are just being read or if they have to be rewritten or if it's just the chunk tree? But for 'btrfs check' and 'btrfs rescue super-recover/zero-log' there should be very little being written so the overlay idea might be a good step? Opinions? -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
