I have a disk that will only mount RO and has the following issue when BTRFS checked I have tried Scrubbing but errors remain what are my next options?

 

Disk 1 has the following errors when doing a BTFRS check

 

[1/7] checking root items

[2/7] checking extents

parent transid verify failed on 1591866720256 wanted 3177 found 3193

parent transid verify failed on 1591866720256 wanted 3177 found 3193

Ignoring transid failure

parent transid verify failed on 2617519161344 wanted 1827879 found 1827895

parent transid verify failed on 2617519161344 wanted 1827879 found 1827895

Ignoring transid failure

parent transid verify failed on 2736103292928 wanted 1828130 found 1828146

parent transid verify failed on 2736103292928 wanted 1828130 found 1828146

Ignoring transid failure

backref bytes do not match extent backref, bytenr=4500955992064, ref bytes=679936, backref bytes=684032

backpointer mismatch on [4500955992064 679936]

backref bytes do not match extent backref, bytenr=5663998078976, ref bytes=557056, backref bytes=561152

backpointer mismatch on [5663998078976 557056]

backref bytes do not match extent backref, bytenr=5663998640128, ref bytes=565248, backref bytes=569344

backpointer mismatch on [5663998640128 565248]

backref bytes do not match extent backref, bytenr=7142533070848, ref bytes=745472, backref bytes=749568

backpointer mismatch on [7142533070848 745472] backref bytes do not match extent

backref, bytenr=7939927638016, ref bytes=630784, backref bytes=634880

backpointer mismatch on [7939927638016 630784] backref bytes do not match extent

backref, bytenr=11081639366656, ref bytes=753664, backref bytes=757760

backpointer mismatch on [11081639366656 753664] ERROR: errors found in extent allocation tree or chunk allocation

[3/7] checking free space cache

there is no free space entry for 4500956672000-4500956676096

there is no free space entry for 4500956672000-4501146697728

cache appears valid but isn't 4500072955904

there is no free space entry for 5663998636032-5663998640128

there is no free space entry for 5663998636032-5664009093120

cache appears valid but isn't 5662935351296

there is no free space entry for 7142533816320-7142533820416

there is no free space entry for 7142533816320-7142551584768

cache appears valid but isn't 7141477842944

there is no free space entry for 7939928268800-7939928272896

there is no free space entry for 7939928268800-7940341760000

cache appears valid but isn't 7939268018176

there is no free space entry for 11081640120320-11081640124416

there is no free space entry for 11081640120320-11082110337024

cache appears valid but isn't 11081036595200

[4/7] checking fs roots

parent transid verify failed on 1591866720256 wanted 3177 found 3193

Ignoring transid failure

parent transid verify failed on 2617519161344 wanted 1827879 found 1827895

Ignoring transid failure

parent transid verify failed on 2736103292928 wanted 1828130 found 1828146

Ignoring transid failure

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

parent transid verify failed on 1591866720256 wanted 3177 found 3193

Ignoring transid failure

there are no extents for csum range 4500956672000-4500956676096

csum exists for 4500676567040-4500973539328 but there is no extent record

there are no extents for csum range 5663999205376-5663999209472

Right section didn't have a record

there are no extents for csum range 5663998636032-5664008814592

csum exists for 5663968206848-5664008814592 but there is no extent record

there are no extents for csum range 7142533816320-7142533820416

csum exists for 7141477842944-7142551478272 but there is no extent record

there are no extents for csum range 7939928268800-7939928272896

csum exists for 7939804889088-7939934044160 but there is no extent record

parent transid verify failed on 2617519161344 wanted 1827879 found 1827895

Ignoring transid failure

parent transid verify failed on 2736103292928 wanted 1828130 found 1828146

Ignoring transid failure

there are no extents for csum range 11081640120320-11081640124416

csum exists for 11081633353728-11081987842048 but there is no extent record

ERROR: errors found in csum tree

[6/7] checking root refs

[7/7] checking quota groups skipped (not enabled on this FS)

ERROR: transid errors in file system

Opening filesystem to check...

Checking filesystem on /dev/md1

UUID: 1e50bdfa-ef2a-486c-a920-873abd0d967b

found 5604656373760 bytes used, error(s) found

total csum bytes: 5465849760

total tree bytes: 6225084416

total fs tree bytes: 361398272

total extent tree bytes: 88276992

btree space waste bytes: 300423581

file data blocks allocated: 5605679144960

referenced 5598424096768

 

Thanks

Transid verify errors are usually fatal with btrfs, you can try these recovery options before re-formatting.

 

Edit to add: btrfs restore is likely the best option to recover the data in this case.

 

 

Thanks for your reply I moved all data from the drive and reformatted the disk then copied the data back and all seems good.