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障害が原因で 1 つのディスクがオフラインになるため、アグリゲートがオフラインになります

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Category:
ontap-9
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環境

  • ONTAP 9
  • ディスク障害

問題

  • 単一ディスクエラーが複数あると、リカバリ目的でディスクがオフラインになります。

[node_name: config_thread: raid.disk.assign.offline_ref:debug]: aggregate /data_aggregate/plex0/rg0/0a.01.1 assigned as an offline reference storage for /data_aggregate/plex0/rg0/0a.01.5.
[node_name: config_thread: raid.disk.assign.offline_ref:debug]: aggregate /data_aggregate/plex0/rg0/0a.01.3 assigned as an offline reference storage for /data_aggregate/plex0/rg0/0a.01.5.
[node_name: config_thread: raid.rg.degraded:notice]: : Raid group /data_aggregate/plex0/rg0 is degraded
[node_name: config_thread: raid.disk.offline:notice]: Marking Disk /data_aggregate/plex0/rg0/0a.01.5 Shelf 1 Bay 5 [NETAPP X123_ABCDE1F2G34NA02] S/N [12345678] UID [00000000:::::::::00000000] offline.

  • RAID グループとアグリゲートは、オフライン状態のときはデグレード状態になります。

Aggregate data_aggregate (online, raid_dp, degraded) (block checksums)
  Plex /data_aggregate/plex0 (online, normal, active, pool0)
    RAID group /LF_FAS8200_801A_data_aggregate/plex0/rg0 (degraded, block checksums)
      RAID Disk    Device      HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------    ------      ------------- ---- ---- ---- ----- --------------    --------------
      dparity     0a.01.1     0a    1   1   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768 
      parity      0a.01.3     0a    1   3   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768
      data        0a.01.5     0a    1   5   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768 (offline)
      data        0a.01.7     0a    1   7   SA:A   0   SAS 10000 857000/1755136000 858483/1758174768

  • ONTAP がディスクをリカバリすると、 RAID グループおよびアグリゲートは正常ステータスに戻ります。

[node_name: config_thread: raid.disk.online:notice]: Onlining Disk /data_aggregate/plex0/rg0/0a.01.5 Shelf 1 Bay 5 [NETAPP   X123_ABCDE1F2G34 NA02] S/N [12345678] UID [00000000:::::::::00000000].
[node_name: config_thread: raid.rg.optrecons.start:debug]: /data_aggregate/plex0/rg0: starting optimized reconstruction, using disk 0a.01.5, disk block 5248
[node_name: config_thread: raid.rg.normal:notice]: : raid group /data_aggregate/plex0/rg0 is in normal state.
[node_name: config_thread: raid.rg.optrecons.done:debug]: /data_aggregate/plex0/rg0: optimized reconstruction completed for 0a.01.5 in 0:01.51

 

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