Post Ontap Upgrade cluster identifies node as a switch
Applies to
- ONTAP 9.11P3
- Switchless Cluster
- AFF & FAS Systems
Issue
- After ONTAP Upgrade to 9.11.1P3, Switch Missing Alerts are constantly populating and CSHM (cluster switch health monitor) is acknowledging a Node IP as switch prior to giveback.
- SwitchCommunityString_Alert is seen:
Cluster::> system health alert show
Node: node_name
Alert ID: SwitchCommunityString_Alert
Severity: Major
....
Probable Cause: Ethernet switch "node-01" with IP address
"X.X.X.X" is not reachable via SNMP. Incorrect
SNMP community string might be configured on the
Ethernet switch.
Possible Effect: Ethernet switch communication problems and
accessibility issues.
Corrective Actions: Check the SNMP community string on the Ethernet switch
to verify that the expected community string is
configured. Use the "system switch ethernet show
-snmp-config" command to view the expected community
string.
Cluster1::> system health subsystem show
Subsystem Health
--------------------------------------------
SAS-connect ok
Environment ok
Memory ok
Service-Processor ok
Switch-Health degraded
- The switch is then discovered as a management-network switch through CDP/ISDP (Cisco Discovery Protocol/Industry Standard Discovery Protocol):
Cluster1::>system switch ethernet show
Switch Type Address Model
----------------------------------------------------------------------------------------
ontap.netapp.com management-network 10.x.x.1 OTHER
Serial Number: Unknown
Is Monitored: false
Reason: MonitoringDisabled by Default
Software Version: Cisco Nexus OperatingSystem (NX-OS) Software, Version 14.2
Version Source: CDP/ISDP