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Call home for cluster network degraded frequent link flapping

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環境

  • ONTAP 9
  • FAS / AFFシステム

問題

  • クラスタポートリンクのフラッピングが原因でクラスタネットワークがデグレード状態になり、システムで次のイベントが報告されます。

[Node-02: intr: netif.linkDown:info]: Ethernet e0a: Link down, check cable.
[Node-02: vifmgr: vifmgr.portdown:notice]: A link down event was received on node Node-02, port e0a.
[Node-02: vifmgr: vifmgr.clus.linkdown:EMERGENCY]: The cluster port e0a on node Node-02 has gone down unexpectedly.
[Node-02: intr: netif.linkUp:info]: Ethernet e0a: Link up.
[Node-02: vifmgr: vifmgr.portup:notice]: A link up event was received on node Node-02, port e0a.
[Node-02: vifmgr: vifmgr.port.monitor.failed:error]: The "link_flapping" health check for port e0a (node Node-02) has failed. The port is operating in a degraded state.
[Node-02: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: Frequent Link Flapping - Cluster port e0a on node Node-02 has experienced multiple link down notifications.

  • リンクフラップが原因でクラスタポートがデグレード状態になっています:

Cluster::*> network port show -health-status degraded -fields health-degraded-reasons
node       port health-degraded-reasons
---------- ---- -----------------------
Node-02    e0a  link_flapping

  • クラスタポートとクラスタスイッチの間のリンクが停止すると、次のアラートがイベントログに報告されます。

[Node-01: cshmd: hm.alert.raised:alert]: Alert Id = ClusterSwitchConnectivity_Alert , Alerting Resource = Node-02 raised by monitor ethernet-switch
[Node-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process cshm: ClusterSwitchConnectivity_Alert[Node-02].

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