[Bug 177966] [zfs] resilver completes but subsequent scrub reports errors

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 11 Jun 2022 20:07:12 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=177966

dgilbert@eicat.ca changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dgilbert@eicat.ca

--- Comment #3 from dgilbert@eicat.ca ---
I want to add to this.  In the following, while preparing to add some disks to
an array, I dislodged a disk.  I put it back and "onlined" it ... after which
it "resilvered" and completed without any warning.

This is still happening.  Here is the scrub (in progress) output... the 42
blocks repaired on v1-f6a were flagged by the scrub and thus missed by the
resilver.

  pool: vr1
 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 in progress since Fri Jun 10 21:37:50 2022
        45.7T scanned at 724M/s, 40.0T issued at 633M/s, 84.3T total
        900K repaired, 47.44% done, 20:23:11 to go
config:

        NAME             STATE     READ WRITE CKSUM
        vr1              ONLINE       0     0     0
          raidz2-0       ONLINE       0     0     0
            gpt/v1-d0    ONLINE       0     0     0
            gpt/v1-d1    ONLINE       0     0     0
            gpt/v1-d2    ONLINE       0     0     0
            gpt/v1-d3    ONLINE       0     0     0
            gpt/v1-d4a   ONLINE       0     0     0
            gpt/v1-d5    ONLINE       0     0     0
            gpt/v1-d6a   ONLINE       0     0     0
            gpt/v1-d7a   ONLINE       0     0     0
          raidz2-2       ONLINE       0     0     0
            gpt/v1-e0c   ONLINE       0     0     0
            gpt/v1-e1c   ONLINE       0     0     0
            gpt/v1-e2b   ONLINE       0     0     0
            gpt/v1-e3b   ONLINE       0     0     0
            gpt/v1-e4b   ONLINE       0     0     0
            gpt/v1-e5a   ONLINE       0     0     0
            gpt/v1-e6a   ONLINE       0     0     0
            gpt/v1-e7d   ONLINE       0     0     0
          raidz2-3       ONLINE       0     0     0
            gpt/v1-f0    ONLINE       0     0     0
            gpt/v1-f1    ONLINE       0     0     0
            gpt/v1-f2    ONLINE       0     0     0
            gpt/v1-f3    ONLINE       0     0     0
            gpt/v1-f4    ONLINE       0     0     0
            gpt/v1-f5    ONLINE       0     0     0
            gpt/v1-f6a   ONLINE      42     0     0  (repairing)
            gpt/v1-f7b   ONLINE       0     0     0
          raidz2-5       ONLINE       0     0     0
            gpt/v1-g0    ONLINE       0     0     0
            gpt/v1-g1    ONLINE       0     0     0
            gpt/v1-g2    ONLINE       0     0     0
            gpt/v1-g3    ONLINE       0     0     0
            gpt/v1-g4    ONLINE       0     0     0
            gpt/v1-g5    ONLINE       0     0     0
            gpt/v1-g6    ONLINE       0     0     0
            gpt/v1-g7    ONLINE       0     0     0
        logs    
          gpt/vr1log     ONLINE       0     0     0
        cache
          gpt/vr1cache   ONLINE       0     0     0
          gpt/vr1cache2  ONLINE       0     0     0

errors: No known data errors

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