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CVO にディスクがありません。システムがパニック状態になりました

環境

  • Cloud Volumes ONTAP (CVO)
  • Blue XP(旧称Cloud Manager)
  • Microsoft Azure
  • Amazon Web Services(AWS)
  • Google Cloud Platform(GCP)
  • シングルノードまたはHAペア

問題

  • 下線のインフラに問題が含まれているために1つ以上のディスクが到達不能になり、パニック状態になります。

[Cluster-01: pha_remove000: mlm.array.lun.removed:notice]: Array LUN '0b.29' (00000000i3g268fHE60S) is no longer being presented to this node.


[Cluster-01: dmgr_thread: raid.disk.missing:info]: Disk /aggr04/plex0/rg0/0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] is missing from the system


[Cluster-01: config_thread: sk.panic:alert]: Panic String: aggr aggr04: raid volfsm, fatal disk error in RAID group with no parity disk..  Raid type - raid0 Group name plex0/rg0 state NORMAL. 1 disk failed in the group. Disk 0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] error: disk does not exist. in SK process config_thread on release 9.7P7 (C)

[Cluster-01: config_thread: sk.panic:alert]: params: {'reason': 'aggr aggr04: raid volfsm, fatal disk error in RAID group with no parity disk..  Raid type - raid0 Group name plex0/rg0 state NORMAL. 1 disk failed in the group. Disk 0b.29 S/N [00000000i3g268fHE60S] UID [00000000i3g268fHE60S] error: adapter error prevents command from being sent to device. in SK process config_thread on release 9.7P7 (C)'}

  • 状況によっては、システムがパニック状態になってパニック状態になることがあり WAFL Hung ます。
        Panic String: WAFL hung for aggr1. in SK process wafl_exempt02 on release 9.9.0 (C)
  • AWS / GCPでは、プレックスで障害が発生し、ノードのステータスが「不明」に戻ることがあります。Azureでディスク(Azure HAルート/データアグリゲートの場合はページBLOB)にアクセスできないと、パニック状態になる可能性があります。
  • HA Group Notification (PARTNER DOWN, TAKEOVER IMPOSSIBLE ) EMERGENCY アラートが原因でサポートケースが自動的に作成されることがある

 

 

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