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ClusterIfIslDownWarn_Alert post ONTAP 9.11.1P5+ upgrade due to unused ISL ports

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Category:
metrocluster
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Applies to

  • MetroCluster IP
  • ONTAP upgrade to 9.11.1P5 or later
  • NetApp CN1610
  • Broadcom BES-53248 switches
  • Nvidia SN2100 switches
  • Cisco Ethernet switches
  • Cluster Switch Health Monitoring (CSHM)

Issue

  • CSHM reports ISL down alerts for unused, but enabled ISL ports in the event logs:

[Node-01: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = Switch1/Slot: 0 Port: 15 25G - Level raised by monitor ethernet-switch

  • The following ASUP alert is triggered:

HA Group Notification (Health Monitor process cshm: ClusterIfIslDownWarn_Alert[Switch1/Slot: 0 Port: 15 25G - Level]) ALERT

  • System health and switch health are reported as degraded because of the alert:

Cluster1::*> system health status show
Status
---------------
degraded

Cluster1::*> system health subsystem show
Subsystem         Health
----------------- ------------------
SAS-connect       ok
Environment       ok
Memory            ok
Service-Processor ok
Switch-Health     degraded
CIFS-NDO          ok
Motherboard       ok
IO                ok
MetroCluster      ok
MetroCluster_Node ok
FHM-Switch        ok
FHM-Bridge        ok
SAS-connect_Cluster
                  ok
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