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CHW-2400: FAS2720 nvmem.battery.FET.off:alert or callhome.battery.warning:alert WARNING

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ontap-9
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HW
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Issue

  • Alert message reported. Example:
     [Message: nvmem.battery.FET.off: The NVMEM battery charge FET is off. To prevent data loss, the system will shut down in 24 hours.]
     [Description: This message occurs when the NVMEM battery charge field-effect transistor (FET) is off. If this issue is not resolved within the specified time, the system shuts down to prevent data loss.]
     [Corrective Action: Shut down the system and power-cycle the controller. If the charge FET remains off, replace the NVMEM battery. If the problem persists, replace the controller module.]


  • ONTAP battery sensors output correct. Example:
     [::> system node environment sensors show -name "Bat Present"|"Bat Volt"]
     [Node Sensor                 State Value/Units Crit-Low Warn-Low Warn-Hi Crit-Hi]
     [---- --------------------- ------ ----------- -------- -------- ------- -------]
     [Node-n01]
     [     Bat Present           normal]
     [                                      PRESENT]
     [     Bat Volt              normal]
     [                                     7700 mV      5500     5600    8500    8600]
     [Node-n02]
     [     Bat Present           normal]
     [                                      PRESENT]
     [     Bat Volt              normal]
     [                                     7900 mV      5500     5600    8500    8600]
     [4 entries were displayed.]


  • ONTAP alert cleared automatically.
  • The system does not experience any reboot scenario

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