A recent scrub of my ZFS pool uncovered one error:
$ zpool status -v rpool pool: rpool state: ONLINEstatus: 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 04:48:04 with 1 errors on Thu Oct 24 14:07:21 2024config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 wwn-0x50014ee216641349-part2 ONLINE 0 0 2 wwn-0x50014ee216620a52-part2 ONLINE 0 0 2 wwn-0x50014ee2c1015982-part2 ONLINE 0 0 2 raidz1-1 ONLINE 0 0 0 ata-WDC_WD3000FYYZ-01UL1B1_WD-WCC1F0293326 ONLINE 0 0 0 ata-WDC_WD30EZRZ-00Z5HB0_WD-WCC4N2ZYKAKR ONLINE 0 0 0 ata-WDC_WD30EZRZ-60Z5HB0_WD-WCC4N0SFH6JA ONLINE 0 0 0 logs ata-CT500MX500SSD1_2344E8835E4F-part1 ONLINE 0 0 0 cache sdi2 ONLINE 0 0 0errors: Permanent errors have been detected in the following files: rpool/[DATASET]@autosnap_2024-09-30_23:30:07_weekly:[FILEPATH](Note: the actual filesystem and file paths are redacted for privacy, but the snapshot name is real.)
Obviously, the error is present in the "autosnap_2024-09-30_23:30:07_weekly" snapshot. However, since ZFS is copy-on-write and this file presumably has not changed in some time, I expect that this error also exists in the versions of this file present in other snapshots. However, the zpool status command does not give me any indication of this. Is there something I can do to determine which snapshots have the corrupted copy of the file in them and which ones do not?
