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クラスタポートe0aとe0bが停止し、CLAMパニックが発生します

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環境

  • AFF A300、FAS8200
  • AFF A200、FAS2650、FAS2620
  • AFF A220、AFF C190、FAS2750、FAS2720
  • 2ノードクラスタ(スイッチレス構成)
  • Connectivity、Liveliness and Availability Monitor(CLAM)は、次の理由で有効になります。
    • ONTAP 9.8以降
    • またはSANエンティティで構成されたクラスタ

問題

  • 両方のノードでクラスタネットワークポートe0aとe0bがほぼ同時に停止します。

Tue Oct 03 11:08:31 CEST [node1: ixgbe/e0b: snmp.link.down:info]: Interface 2 is down.
Tue Oct 03 11:08:31 CEST [node1: ixgbe/e0b: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
Tue Oct 03 11:08:31 CEST [node1: ixgbe/e0a: snmp.link.down:info]: Interface 1 is down.
Tue Oct 03 11:08:31 CEST [node1: ixgbe/e0a: netif.linkDown:info]: Ethernet e0a: Link down, check cable.

Tue Oct 03 11:08:32 CEST [node2: ixgbe/e0b: snmp.link.down:info]: Interface 2 is down.
Tue Oct 03 11:08:32 CEST [node2: ixgbe/e0b: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
Tue Oct 03 11:08:32 CEST [node2: ixgbe/e0a: snmp.link.down:info]: Interface 1 is down.
Tue Oct 03 11:08:32 CEST [node2: ixgbe/e0a: netif.linkDown:info]: Ethernet e0a: Link down, check cable.

  • いずれかのノードで「クォーラム不足」パニックが発生しました。

PANIC  : Received PANIC packet from partner, receiving message is (Coredump and takeover initiated because Connectivity, Liveliness and Availability Monitor (CLAM) has determined this node is out of quorum.

  • テイクオーバーが開始され、クラスタをテイクオーバーしたノードでデータが提供されている

 

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