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Storage node suddenly stops sending LACP packets causing intermittent volumesDegraded and block service alerts

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hci
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Applies to

  • NetApp HCI H610S
  • SolidFire AFA SF4805
  • Network Switch configured in LACP slow

Issue

  • Following intermittent alerts seen in NetApp SolidFire Active IQ:

    • volumesDegraded
    • Details : Local replication and synchronization of the following volumes is in progress. Progress of the synchronization can be seen in the Running Tasks window. [VolumeID] 
    • A bulk volume service is not responding.
  • No signs of faulty hardware or issues with the nic drivers
  • Happens on different models of storage nodes with different nic vendors 
  • From switch logs, it shows the ports gut suspended due to no LACP received
    • 2023 Nov 13 01:09:36 NODE1-CUST-vDC %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet3/7: Ethernet3/7 is suspended by protocol, no LACP PDUs received
      2023 Nov 13 01:11:17 NODE1-CUST-vDC %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet3/7: Ethernet3/7 is suspended by protocol, no LACP PDUs received
      2023 Nov 13 01:14:37 NODE1-CUST-vDC %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet3/7: Ethernet3/7 is suspended by protocol, no LACP PDUs received
      2023 Nov 13 01:15:07 NODE1-CUST-vDC %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet3/7: Ethernet3/7 is suspended by protocol, no LACP PDUs received

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