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Sudden increase in latency latency during an onsite intervention

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3
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Category:
metrocluster
Specialty:
NAS
Last Updated:

 

Applies to

  • MetroCluster IP

Issue

  • Sudden increase in latency has been observed while an onsite intervention was ongoing
  • Following CP toolong caused by the flapping link messages reported in EMS:

Wed Feb 16 18:53:53 +0000 [netapp01-02: intr: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
Wed Feb 16 18:53:55 +0000 [netapp01-02: intr: netif.linkUp:info]: Ethernet e0b: Link up.
Wed Feb 16 18:55:28 +0000 [netapp01-02: wafl_exempt14: wafl.cp.toolong:error]: Aggregate aggr0_netapp01_02 experienced a long CP.
Wed Feb 16 18:55:28 +0000 [netapp01-02: wafl_exempt14: wafl.cp.toolong:error]: Aggregate dnetapp05_02_NVME_SSD_1 experienced a long CP.
Wed Feb 16 18:58:58 +0000 [netapp01-02: intr: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
Wed Feb 16 18:59:00 +0000 [netapp01-02: intr: netif.linkUp:info]: Ethernet e0b: Link up.
Wed Feb 16 19:00:13 +0000 [netapp01-02: wafl_exempt13: wafl.cp.toolong:error]: Aggregate aggr0_netapp01_02 experienced a long CP.
Wed Feb 16 19:00:13 +0000 [netapp01-02: wafl_exempt10: wafl.cp.toolong:error]: Aggregate netapp01_02_NVME_SSD_1 experienced a long CP.
Wed Feb 16 19:30:14 +0000 [netapp01-02: intr: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
Wed Feb 16 19:30:14 +0000 [netapp01-02: intr: netif.linkUp:info]: Ethernet e0b: Link up.

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