"SwitchPowerFail_Alert" is reported on cluster network switches

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Category:: ontap-9

Specialty:: hw

Last Updated:

Applies to

ONTAP 9
Cisco NX3232C / N9K-C9336C-FX2 cluster network switches

Issue

"SwitchPowerFail_Alert" and "SwitchPsuFanNotOperational_Alert" is reported on the cluster network switches pointing to PowerSupply

::> 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.

::> system health alert show

Node: Node-n09

Alert ID: SwitchPowerFail_Alert

Resource: PowerSupply-1

Severity: Major

Indication Time: Mon Oct 27 17:23:14 2025

Suppress: false

Acknowledge: false

Probable Cause: "PowerSupply-1" on switch "switch1(FOCXXXXXXXX)" is missing or is not operational.

Possible Effect: Power supply redundancy on switch "switch1(FOCXXXXXXX)" might be lost.

Corrective Actions: 
1) Ensure that the power supply units supplying power to the switch are turned on.

2) Ensure that the power cord is securely connected to the power supply of the switch.

Node: Node-n09
Monitor: ethernet-switch
Alert ID: SwitchPsuFanNotOperational_Alert
Alerting Resource: switch1(FOCXXXXXXXX)/PowerSupply-1 Fan-1
Subsystem: Switch-Health
Indication Time: Mon Oct 27 17:23:14 2025
Perceived Severity: Major
Probable Cause: Out_of_service
Description: "PowerSupply-1 Fan-1" on switch "switch1(FOCXXXXXXXX)" is not functioning properly.

Corrective Actions:  
1) Use the switch CLI to verify that the fan is functioning at the expected speed. 
2) Replace the fan, if it is not operational.

Possible Effect: Cooling of switch "switch1(FOCXXXXXXXX)" might be degraded.
Acknowledge: FALSE
Suppress: FALSE
Policy: SwitchPsuFanNotOperational_Policy
Acknowledger:
Suppressor:

Additional Information:           
Switch Name: switch1(FOCXXXXXXXX) 
Switch Show Model: N9K-C9336C-FX2 
Switch Serial Number: FOCXXXXXXXX 
Fan Name: PowerSupply-1 Fan-1 
Single Fan or Fan Tray: single 
Is PSU Fan: yes 
Fan Container Name: PowerSupply-1 
Fan Status: not-operational 
Successive Warning Count: 943 
Error Description: operStatus=3 
Switch Fan Resource Status: ok

Alerting Resource Name: switch1(FOCXXXXXXXX)/PowerSupply-1 Fan-1

EMS logs:

HA Group Notification (Health Monitor process cshm: SwitchPowerFail_Alert[switch1(FOCXXXXXX)/PowerSupply-1]) ALERT

The switch power supply is found to be failed:

::> system switch ethernet power show

Admin Operational

Switch Power Supply Status Status Error

------------------ ----------------- ---------- ----------- ---------------

Switch1 PowerSupply-1 on failed offEnvPower

Switch1 PowerSupply-2 on operational

The "show env" output from switch reports the following:

switch1# show env Fan: --------------------------------------------------------------------------- Fan Model Hw Direction Status --------------------------------------------------------------------------- Fan1(sys_fan1) NXA-FAN-30CFM-F -- back-to-front Ok Fan2(sys_fan2) NXA-FAN-30CFM-F -- back-to-front Ok Fan3(sys_fan3) NXA-FAN-30CFM-F -- back-to-front Ok Fan4(sys_fan4) NXA-FAN-30CFM-F -- back-to-front Ok Fan_in_PS1 -- -- back-to-front Shutdown Fan_in_PS2 -- -- back-to-front Ok Fan Zone Speed: Zone 1: 0x9a Fan Air Filter : NotSupported

Power Supply: Voltage: 12 Volts Power Actual Actual Total Supply Model Output Input Capacity Status (Watts ) (Watts ) (Watts ) ------- ---------- --------------- ------ ---------- -------------------- 1 NXA-PAC-650W-PE 0 W 0 W 0 W Shutdown 2 NXA-PAC-650W-PE 99 W 110 W 650 W Ok