ClusterIfIslDownWarn_Alert post ONTAP 9.11.1P5+ upgrade due to unused ISL ports
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 event logs:
[Node-01: cshmd: hm.alert.raised:alert]: Alert Id = SwitchIslIfDownWarn_Alerts, Alerting Resource = Switch1/Slot: 0 Port: 15 25G - Level raised by monitor ethernet-switch
- ASUP alert is triggered:
HA Group Notification (Health Monitor process cshm: SwitchIslIfDownWarn_Alerts[Switch1/Slot: 0 Port: 15 25G - Level]) ALERT
- System health and switch health are reported as degraded:
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
13 entries were displayed.