I had an unclean shutdown and coming back up, my cache drive is not mountable. Attached are my diags.

 

Unmountable disk present:
Cache • Samsung_SSD_970_EVO_Plus_2TB_S59CNM0RA30351D (nvme0n1)

 

 

 

btrfs check with -n

 

[1/7] checking root items

[2/7] checking extents

[3/7] checking free space tree free space info recorded 5227 extents, counted 5237 wanted offset 50535092224, found 50535088128 cache appears valid but isn't 50487885824 free space info recorded 1388 extents, counted 1398 There are still entries left in the space cache cache appears valid but isn't 59077820416

[4/7] checking fs roots

[5/7] checking only csums items (without verifying data)

[6/7] checking root refs

[7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/mapper/nvme0n1p1 UUID: 511844b9-b3cc-4da0-bac2-e4c2d3fcff7f found 1031122690048 bytes used, error(s) found total csum bytes: 646066272 total tree bytes: 1119682560 total fs tree bytes: 158973952 total extent tree bytes: 107642880 btree space waste bytes: 243970093 file data blocks allocated: 5365445775360 referenced 955935105024

 

btrfs check with no modifier

 

 

[1/7] checking root items

[2/7] checking extents

[3/7] checking free space tree free space info recorded 5227 extents, counted 5237 wanted offset 50535092224, found 50535088128 cache appears valid but isn't 50487885824 free space info recorded 1388 extents, counted 1398 There are still entries left in the space cache cache appears valid but isn't 59077820416 [4/7] checking fs roots

[5/7] checking only csums items (without verifying data)

[6/7] checking root refs

[7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/mapper/nvme0n1p1 UUID: 511844b9-b3cc-4da0-bac2-e4c2d3fcff7f found 1031122690048 bytes used, error(s) found total csum bytes: 646066272 total tree bytes: 1119682560 total fs tree bytes: 158973952 total extent tree bytes: 107642880 btree space waste bytes: 243970093 file data blocks allocated: 5365445775360 referenced 955935105024

 

btrfs check with -L

 

 

[1/7] checking root items

[2/7] checking extents

[3/7] checking free space tree free space info recorded 5227 extents, counted 5237 wanted offset 50535092224, found 50535088128 cache appears valid but isn't 50487885824 free space info recorded 1388 extents, counted 1398 There are still entries left in the space cache cache appears valid but isn't 59077820416

[4/7] checking fs roots

[5/7] checking only csums items (without verifying data)

[6/7] checking root refs

[7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/mapper/nvme0n1p1 UUID: 511844b9-b3cc-4da0-bac2-e4c2d3fcff7f found 1031122690048 bytes used, error(s) found total csum bytes: 646066272 total tree bytes: 1119682560 total fs tree bytes: 158973952 total extent tree bytes: 107642880 btree space waste bytes: 243970093 file data blocks allocated: 5365445775360 referenced 955935105024

 

 

 

While it is not critical if I have to format the drive but hate to do it. Any thoughts on what I can try to fix it?

 

 

diagnostics-20240124-0800.zip

Edited January 24, 20242 yr by LimeB

If the log tree is the only problem this may help:

 

btrfs rescue zero-log /dev/mapper/nvme0n1p1

 

Then restart the array.

Awesome. I am back in business! Thank you.