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WAFL Inconsistent user data block error on a SnapMirror Destination volume after replication

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Category:
ontap-9
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core
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Applies to

  • ONTAP 9
  • FAS/AFF
  • SnapMirror 

Issue

  • An AutoSupport (ASUP) is generated indicating a WAFL inconsistency on a SnapMirror destination volume shortly after a SnapMirror initialize/update/replication event.
  • Immediately after SnapMirror initialize or transfer completion, on newly created destination volumes
  • A WAFL inconsistent user data block is reported on the destination cluster following SnapMirror replication activity,  within a destination (DP) volume.

[Node-01: wafl_exempt09: wafl.incons.userdata.vol:alert]: WAFL inconsistent: volume VolName@vserver:d29c6c79-xxxx-xxxx-xxxx-d039ea131e55 has an inconsistent user data block. Note: Any new snapshots might contain this inconsistency.
[Node-01: wafl_exempt09: wafl.raid.incons.userdata:error]: WAFL inconsistent: inconsistent user data block at VBN 45458222690 (vvbn:12066291 fbn:1 level:0) in public inode (fileid:97 snapid:0 file_type:1 disk_flags:0x8002 error:121 raid_set:0) in volume VolName@vserver:d29c6c79-xxxx-xxxx-xxxx-d039ea131e55.

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