WAFL inconsistent user data block in private Inode during snapshot restore activities

Last updated

Mar 2, 2025
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Views:: 88

Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: core

Last Updated:: 3/2/2025, 10:59:13 PM

Applies to

ONTAP 9
FabricPool
Snapshots

Issue

ASUP case open with multiple WAFL inconsistency ESM messages during a planned Snapshot restore activity from customer.

The inconsistency is reported on some specific volumes:

Fri Feb 14 17:23:59 -0600 [A700-00: wafl_exempt11: wafl.incons.userdata.vol:alert]: WAFL inconsistent: volume <>@vserver:<> has an inconsistent user data block. Note: Any new Snapshot copies might contain this inconsistency.
Fri Feb 14 17:23:59 -0600 [A700-00: wafl_exempt11: callhome.wafl.inconsistent.user.block:alert]: Call home for WAFL INCONSISTENT USER BLOCK
Fri Feb 14 17:23:59 -0600 [A700-00: wafl_exempt11: wafl.raid.incons.set.error:alert]: Data block in private inode (fileid: 0000 snapid: 0 fbn: 524926014 level: 0) in volume <> marked with error (121) by Tiering Promotion Scanner. Block previously had error (121).

Fri Feb 14 17:23:59 -0600 [A700-00: wafl_exempt11: wafl.raid.incons.userdata:error]: WAFL inconsistent: inconsistent user data block at VBN 00000000000 (vvbn:00000 fbn:0000 level:0) in private inode (fileid:container snapid:0 file_type:6 disk_flags:0xc10000800800143 error:121 raid_set:1) in volume <>@vserver:<>.