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CONTAP-244031: SwitchFanNotPresent_Alert reported after ONTAP upgrade to 9.13.1

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Issue

  • These Ethernet switch health monitor alerts occur after upgrading to 9.13.1:
    hm.alert.raised: Alert Id = SwitchFanNotPresent_Alert , Alerting Resource = ClusterSwitch(FOCXXXX)/Fan Module-4
    hm.alert.raised: Alert Id = SwitchFanNotPresent_Alert , Alerting Resource = ClusterSwitch(FOCXXXX)/Fan Module-3
    hm.alert.raised: Alert Id = SwitchFanNotPresent_Alert , Alerting Resource = ClusterSwitch(FOCXXXX)/Fan Module-2
    hm.alert.raised: Alert Id = SwitchFanNotPresent_Alert , Alerting Resource = ClusterSwitch(FOCXXXX)/Fan Module-1
  • When checking switch status directly, no errors are reported.
  • The issue has only been reported on Cisco Nexus 3132Q-V (NX3132) switches.
  • You can check fan health with the "show environment fan detail" command on the Cisco Nexus switch.
  • Example:
    Switch> enable
    Switch# show environment fan detail
    Fan:
    ---------------------------------------------------------------------------
    Fan Model Hw Direction Status
    ---------------------------------------------------------------------------
    Fan1(sys_fan1) NXA-FAN-30CFM-F 0.0 front-to-back Ok
    Fan2(sys_fan2) NXA-FAN-30CFM-F 0.0 front-to-back Ok
    Fan3(sys_fan3) NXA-FAN-30CFM-F 0.0 front-to-back Ok
    Fan4(sys_fan4) NXA-FAN-30CFM-F 0.0 front-to-back Ok
    Fan_in_PS1 N2200-PAC-400W -- front-to-back Ok
    Fan_in_PS2 N2200-PAC-400W -- front-to-back Ok
    Fan Zone Speed: Zone 1: 0x3.2

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