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ClusterSwitchlessConfig_Alert がトリガーされると、スイッチが監視対象から消える

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metrocluster
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環境

  • Metrocluster IP構成
  • Cisco Nexus C9336C-FX2

問題

  • MetroCluster スイッチが断続的に ONTAP から消え、以下のコマンドを実行すると空のテーブルが生成されます:

::*> system switch ethernet show
This table is currently empty.

::*> system switch ethernet show-all
This table is currently empty.

  • さらに、影響を受けるノードでは、以下のヘルスアラートがトリガーされます(出力例):

Node: Node-01
Alert ID: ClusterSwitchlessConfig_Alert
Severity: Major
Probable Cause: No cluster switch is detected and the switchless option is not enabled.

Node: Node-01
Alert ID: SwitchInfoUpdateFailure_Alert
Resource: DCH-MCS-B1(FDO26380BQ1)
Severity: Major
Probable Cause: Information from the Ethernet switch is no longer being updated.

  • network device-discovery show コマンドでは、スイッチが CDP/LLDP 経由で認識されるが、ONTAP 内部スイッチテーブルには表示されない。

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