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Failed cache pool upgrade to larger drive

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hey folks, so am trying to upgrade my cache pool from two 256gb SSD's to 2 1TB SSDs.... Suggestions I found online was to stop the array, remove a drive, add the new larger drive and let it buil;d... Well I did this and now its unmountable fs.... I still have the second 256gb SSD unassigned but not sure how to proceed here

image.thumb.png.32b5370c4eeac86c193ef715011b4365.png

Solved by johntdyer

  • Author

argh, tried creating a new temp cache pool and moving the odler 256gb drive into it, shows as unmountable

 

image.thumb.png.91dbe10c0fa6f62d517dc8fb89f06089.png

 

  • Author

Also tried mounting the volume via unassigned devices and got the following error

 

image.thumb.png.fff8b496c1e222b317eae98eaf77747f.png

 

Then in syslog I see the following

 

```

May  7 15:28:22 Tower unassigned.devices: Mounting partition 'sdb1' at mountpoint '/mnt/disks/QEMU_QEMU_HARDDISK'...
May  7 15:28:22 Tower unassigned.devices: Mount cmd: /sbin/mount -t 'btrfs' -o rw,relatime,space_cache=v2,discard '/dev/sdb1' '/mnt/disks/QEMU_QEMU_HARDDISK'
May  7 15:28:22 Tower kernel: BTRFS info (device sdd1): first mount of filesystem 04c41cfb-a8db-4caf-9fe5-32087da8fc68
May  7 15:28:22 Tower kernel: BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
May  7 15:28:22 Tower kernel: BTRFS info (device sdd1): turning on sync discard
May  7 15:28:22 Tower kernel: BTRFS info (device sdd1): using free space tree
May  7 15:28:22 Tower kernel: BTRFS error (device sdd1): devid 2 uuid c6645f6d-39cf-4efc-94fe-2f730c9023d6 is missing
May  7 15:28:22 Tower kernel: BTRFS error (device sdd1): failed to read the system array: -2
May  7 15:28:22 Tower kernel: BTRFS error (device sdd1): open_ctree failed
May  7 15:28:23 Tower unassigned.devices: Mount of 'sdb1' failed: 'mount: /mnt/disks/QEMU_QEMU_HARDDISK: mount system call failed: No such file or directory.        dmesg(1) may have more information after failed mount system call.'
May  7 15:28:23 Tower unassigned.devices: Partition 'QEMU QEMU_HARDDISK' cannot be mounted.

 

 

there is nothing in dmesg

Edited by johntdyer

  • Community Expert

Post the output from

btrfs fi show

 

  • Author
  • Solution

gave up and just restored from backup, thanks

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