Hi all, My server hung this morning, and I had to hard-reset is. I did not apply any updates. After the reboot, my FS won't mount: [Sat Aug 24 08:16:31 2019] BTRFS error (device sde2): super_total_bytes 92017957797888 mismatch with fs_devices total_rw_bytes 184035915595776 [Sat Aug 24 08:16:31 2019] BTRFS error (device sde2): failed to read chunk tree: -22 [Sat Aug 24 08:16:31 2019] BTRFS error (device sde2): open_ctree failed However, running btrfs rescue shows: root@cornelis ~]# btrfs rescue fix-device-size /dev/sdh2 No device size related problem found FS config is shown below: [root@cornelis ~]# btrfs fi show Label: 'cornelis-btrfs' uuid: ac643516-670e-40f3-aa4c-f329fc3795fd Total devices 1 FS bytes used 536.05GiB devid 1 size 800.00GiB used 630.02GiB path /dev/mapper/cornelis- cornelis--btrfs Label: 'data' uuid: 43472491-7bb3-418c-b476-874a52e8b2b0 Total devices 16 FS bytes used 36.61TiB devid 1 size 7.28TiB used 2.65TiB path /dev/sde2 devid 2 size 3.64TiB used 2.65TiB path /dev/sdf2 devid 3 size 3.64TiB used 2.65TiB path /dev/sdg2 devid 4 size 7.28TiB used 2.65TiB path /dev/sdh2 devid 5 size 3.64TiB used 2.65TiB path /dev/sdi2 devid 6 size 7.28TiB used 2.65TiB path /dev/sdj2 devid 7 size 3.64TiB used 2.65TiB path /dev/sdk2 devid 8 size 3.64TiB used 2.65TiB path /dev/sdl2 devid 9 size 7.28TiB used 2.65TiB path /dev/sdm2 devid 10 size 3.64TiB used 2.65TiB path /dev/sdn2 devid 11 size 7.28TiB used 2.65TiB path /dev/sdo2 devid 12 size 3.64TiB used 2.65TiB path /dev/sdp2 devid 13 size 7.28TiB used 2.65TiB path /dev/sdq2 devid 14 size 7.28TiB used 2.65TiB path /dev/sdr2 devid 15 size 3.64TiB used 2.65TiB path /dev/sds2 devid 16 size 3.64TiB used 2.65TiB path /dev/sdt2 Other info: [root@cornelis ~]# uname -r 4.18.16-arch1-1-ARCH I was able to mount is using: [root@cornelis ~]# mount -o usebackuproot,ro /dev/sdh2 /mnt/data Now updating my backup, but I REALLY hope to get this fixed on the production server! -- Cheers, Patrick Dijkgraaf
