CONTAP-244031：升级到 ONTAP 9.13.1 后报告 SwitchFanNotPresent_Alert

问题描述

• 这些以太网交换机运行状况监视器警报在升级到 9.13.1 后发生：
  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
  
• 直接检查交换机状态时，未报告任何错误。
• 仅在 Cisco Nexus 3132Q-V (NX3132) 交换机上报告了此问题。
• 可在 Cisco Nexus 交换机上使用 "show environment fan detail" 命令检查风扇运行状况。
• 示例：
  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