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バックエンドアレイを使用するMetroClusterでplex failuresが発生しています

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環境

  • Metrocluster
  • FlexArrray
  • ONTAP 9

問題

  • ONTAPファブリックMetroClusterに接続されているストレージアレイで、SCSIタイムアウトエラーにより複数のディスクに障害が発生したと報告されました:

例:

Fri Dec 04 20:09:18 EST [node1: config_thread: raid.config.filesystem.disk.not.responding:notice]: File system Disk /node1/plex0/rg0/switch1:12.126L119 Shelf - Bay - [NETAPP   INF-01-00        0842] S/N [xxxxxxxxxxxxxxxxxxxxxx] UID [xxxxxxxx:xxxxxxxx:xxxxxxxx:xxxxxxxx:00000000:00000000:00000000:00000000:00000000:00000000] is not responding.

  • これらのエラーにより、MetroClusterの両方のクラスタで複数のsyncmirrorプレックス障害が発生します。

例:

Aggregate aggrname (online, raid0, mirror degraded) (block checksums)
  Plex /aggrname/plex0 (offline, failed, inactive)
    RAID group /aggrname/plex0/rg0 (partial, block checksums)

      RAID Disk   Device                HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------   ------                ------------- ---- ---- ---- ----- --------------    --------------
      data   FAILED                   N/A                        13972000/ -
      data      switch1:12.126L78    0f    -   -          0   LUN   N/A 13972000/28614656000 14000000/28672000000
      data   FAILED                   N/A                        13972000/ -
      data      switch1:12.126L82    0f    -   -          0   LUN   N/A 13972000/28614656000 14000000/28672000000
      data      switch1:12.126L80    0f    -   -          0   LUN   N/A 13972000/28614656000 14000000/28672000000
      data   FAILED                   N/A                        13972000/ -
      Raid group is missing 3 disks.

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