Checksum errors not showing affected files in raidz2 pool

[huoxingdawang]

I have a raidz2 pool that has been experiencing checksum errors. However, when I run zpool status -v, it does not list any erroneous files.

I have performed multiple zfs clear and zfs scrub, each time resulting in 18 CKSUM errors for every disk and "repaired 0B with 9 errors".

Despite these errors, the zpool status -v command for my pool does not display any specific files with issues. Here are the details of my pool configuration and the error status:

zpool status -v home-pool
  pool: home-pool
 state: ONLINE
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
  scan: scrub repaired 0B in 1 days 16:20:56 with 9 errors on Fri Mar 14 15:02:37 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        home-pool                                 ONLINE       0     0     0
          raidz2-0                                ONLINE       0     0     0
            db91f778-e537-46dc-95be-bb0c1d327831  ONLINE       0     0    18
            b3902de3-6f48-4214-be96-736b4b498b61  ONLINE       0     0    18
            3e6f9c7e-bf9a-41d1-b37c-a1deb4b9e776  ONLINE       0     0    18
            295cd467-cce3-4a81-9b0a-0db1f992bf37  ONLINE       0     0    18
            984d0225-0f8e-4286-ab07-f8f108a6a0ce  ONLINE       0     0    18
            f70d7e08-8810-4428-a96c-feb26b3d5e96  ONLINE       0     0    18
        cache
          748a0c72-51ea-473b-b719-f937895370f4    ONLINE       0     0     0

errors: Permanent errors have been detected in the following files:

Sometimes I can get a "errors: No known data errors" output, but still with 18 CKSUM errors.

zpool status -v home-pool
  pool: home-pool
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or replace the device with 'zpool replace'.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
  scan: scrub repaired 0B in 1 days 16:20:56 with 9 errors on Fri Mar 14 15:02:37 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        home-pool                                 ONLINE       0     0     0
          raidz2-0                                ONLINE       0     0     0
            db91f778-e537-46dc-95be-bb0c1d327831  ONLINE       0     0    18
            b3902de3-6f48-4214-be96-736b4b498b61  ONLINE       0     0    18
            3e6f9c7e-bf9a-41d1-b37c-a1deb4b9e776  ONLINE       0     0    18
            295cd467-cce3-4a81-9b0a-0db1f992bf37  ONLINE       0     0    18
            984d0225-0f8e-4286-ab07-f8f108a6a0ce  ONLINE       0     0    18
            f70d7e08-8810-4428-a96c-feb26b3d5e96  ONLINE       0     0    18
        cache
          748a0c72-51ea-473b-b719-f937895370f4    ONLINE       0     0     0

errors: No known data errors

I am in zfs 2.3:

zfs version
zfs-2.3.0-1
zfs-kmod-2.3.0-1

And when I run zpool events, I can find some "ereport.fs.zfs.checksum"

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x6d1d5a4549645764
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x6d1d5a4549645764
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/295cd467-cce3-4a81-9b0a-0db1f992bf37"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc903872f2
        vdev_delta_ts = 0x1a38cd4
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727307000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c68

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x661aa750e3992e00
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x661aa750e3992e00
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/3e6f9c7e-bf9a-41d1-b37c-a1deb4b9e776"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc90106906
        vdev_delta_ts = 0x5aef730
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727307000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c69

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x27addaa7620a5f3e
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x27addaa7620a5f3e
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/b3902de3-6f48-4214-be96-736b4b498b61"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc8f9f5e17
        vdev_delta_ts = 0x42d97
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727307000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c6a

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x32f2d10d0eb7e000
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x32f2d10d0eb7e000
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/db91f778-e537-46dc-95be-bb0c1d327831"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc8f9f763b
        vdev_delta_ts = 0x343c3
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727307000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c6b

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x4e86f9eec21f5e19
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x4e86f9eec21f5e19
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/f70d7e08-8810-4428-a96c-feb26b3d5e96"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc902e5afa
        vdev_delta_ts = 0x7523e
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727306000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c6c

Mar 11 2025 16:32:28.610303588 ereport.fs.zfs.checksum
        class = "ereport.fs.zfs.checksum"
        ena = 0x8bc9037aabb07001
        detector = (embedded nvlist)
                version = 0x0
                scheme = "zfs"
                pool = 0xb85e01d1d3ace3bb
                vdev = 0x164dd4545a3f6709
        (end detector)
        pool = "home-pool"
        pool_guid = 0xb85e01d1d3ace3bb
        pool_state = 0x0
        pool_context = 0x0
        pool_failmode = "continue"
        vdev_guid = 0x164dd4545a3f6709
        vdev_type = "disk"
        vdev_path = "/dev/disk/by-partuuid/984d0225-0f8e-4286-ab07-f8f108a6a0ce"
        vdev_ashift = 0x9
        vdev_complete_ts = 0x348bc8faabb1e
        vdev_delta_ts = 0x1ae37
        vdev_read_errors = 0x0
        vdev_write_errors = 0x0
        vdev_cksum_errors = 0x4
        vdev_delays = 0x0
        dio_verify_errors = 0x0
        parent_guid = 0xbe381bdf1550a88
        parent_type = "raidz"
        vdev_spare_paths = 
        vdev_spare_guids = 
        zio_err = 0x34
        zio_flags = 0x2000b0 [SCRUB SCAN_THREAD CANFAIL DONT_PROPAGATE]
        zio_stage = 0x400000 [VDEV_IO_DONE]
        zio_pipeline = 0x5e00000 [VDEV_IO_START VDEV_IO_DONE VDEV_IO_ASSESS CHECKSUM_VERIFY DONE]
        zio_delay = 0x0
        zio_timestamp = 0x0
        zio_delta = 0x0
        zio_priority = 0x4 [SCRUB]
        zio_offset = 0xc2727306000
        zio_size = 0x8000
        zio_objset = 0xc30
        zio_object = 0x6
        zio_level = 0x0
        zio_blkid = 0x1f2526
        time = 0x67cff51c 0x24607e64 
        eid = 0x9c6d

How can I determine which file is causing the problem, or how can I fix the errors. Or should I just let these 18 errors exists ?