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WAFL inconsistency due to medium errors on X306_WMANT02TSSM drives

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Applies to

  • Drives X306_WMANT02TSSM running firmware NA09
  • WAFL user data inconsistency

Issue

  • Unrecovered medium errors on multiple disks

Sat Dec 04 00:45:45 +0100 [node-1: disk_server_0: disk.ioMediumError:notice]: Medium error on disk 0d.26.11: op 0x28:6c87fed9:0240 sector 1820852325 SCSI:medium error - Unrecovered read error - If the disk is in a RAID group, the subsystem will attempt to reconstruct unreadable data (3 11 0 0) (7090) Disk 0d.26.11 Shelf 26 Bay 11 [NETAPP   X306_WMANT02TSSM NA09] S/N [WD-WMAUR0521188] UID [500605BA:00106614:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]

  • RAID has issues to reconstruct the stripe (triggered from the replaced and reconstructing disks)

Sat Dec 04 13:43:36 +0100 [node-1: raidio_thread: raid_multierr_bad_block_1:error]: params: {'disk_rpm': '7200', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA00', 'shelf': '26', 'disk_info': 'Disk /aggr_cns_n06_sata_00/plex0/rg1/0d.26.6 Shelf 26 Bay 6 [NETAPP   X306_SMBPE02TSSM NA00] S/N [ZC23P4EB] UID [500605BA:0152D794:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'volumeBno': '7996573056', 'site': 'Local', 'bay': '6', 'carrier': '', 'serialno': 'ZC23P4EB', 'owner': '', 'model': 'X306_SMBPE02TSSM', 'disk_type': '6', 'blockNum': '183961984'}

  • WAFL inconsistency errors reported

Sat Dec 04 13:47:40 +0100 [node-1: wafl_exempt11: wafl.raid.incons.userdata:error]: WAFL inconsistent: inconsistent user data block at VBN 8430607296 (vvbn:1345580529 fbn:105274 level:0) in public inode (fileid:23150065 snapid:0 file_type:1 disk_flags:0x2 error:120 raid_set:1) in volume vol1@vserver:78133db2-bc33-11e4-8678-1234567890.
Sat Dec 04 13:47:40 +0100 [node-1: wafl_exempt11: wafl.incons.userdata.vol:alert]: WAFL inconsistent: volume vol1@vserver:78133db2-bc33-11e4-8678-1234567890 has an inconsistent user data block. Note: Any new Snapshot copies might contain this inconsistency.

  • System has drives with over 6 years of operating life

 

 

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