AFF A250 / FAS500f Low Bat_Dstg_Cycles cause BATTERY (capacity low) error

Last updated
Save as PDF
Share
1. Share
2. Tweet
3. Share

Views:: 7,447

Visibility:: Public

Votes:: 5

Category:: aff-series

Specialty:: hw

Last Updated:

Applies to

AFF A250
FAS500f
NVMEM battery firmware C0 or lower

BMC node-name> system battery show DeviceChemistry : LION ChemistryID : 0x1968 DeviceName : bq40z50-R2 ID : 27100073 ManufacturerName : Inv27100073+C0 FW version : C0

Issue

Events with BATTERY (capacity low)

1/1/2022 00:00:00 node-name ALERT callhome.battery.low: Call home for BATTERY_LOW. 1/1/2022 00:00:00 node-name EMERGENCY monitor.nvramLowBattery: NVRAM battery is dangerously low. 1/1/2022 00:00:00 node-name ALERT callhome.battery.warning: Call home for BATTERY (capacity low) WARNING.

EMS message with error and correction (normal) reported:

[node-name: env_mgr: nvmem.battery.capLowWarn:error]: The NVMEM battery capacity is below normal (5 cycles). [node-name: env_mgr: callhome.battery.notice:notice]: Call home for BATTERY (capacity low) NOTICE. [node-name: env_mgr: nvmem.battery.capNormal:notice]: The NVMEM battery capacity is normal.

BMC event for low battery:

123 | 06/16/2022 | 16:56:09 | Battery #0x49 | Lower Non-critical going low

system sensors show reports Bat_Dstg_Cycles is lower than or equal to lnc

=================== sensor ========================== Sensor name | reading | unit | status| lnr | lcr | lnc | unc | ucr | unr Bat_Temp | 34.500 | degrees C | ok | 0.000 | 0.000 | 5.000 | 60.000 | 75.000 | 127.500 Bat_Volt | 8.100 | Volts | ok | 0.000 | 5.500 | 5.600 | 8.500 | 8.600 | 12.750 Bat_Curr | 0.000 | Amps | ok | na | na | na | 1.200 | 1.520 | 2.540 Bat_Rem_Cap | 9.840 | Watts * hour | ok | na | na | na | na | na | na Bat_Full_Cap | 10.800 | Watts * hour | ok | na | na | na | na | na | na Bat_Charge_Curr | 0.000 | Amps | ok | na | na | na | 2.200 | 2.300 | 5.100 Bat_Charge_Volt | 8.200 | Volts | ok | na | na | na | 8.900 | 9.000 | 12.750 Bat_Design_Cap | 18.400 | Watts * hour | ok | na | na | na | na | na | na Bat_Initial_Fcc | 20.400 | Watts * hour | ok | na | na | na | na | na | na Bat_Dstg_Cycles | 4.000 | cycles | nc | na | 2.000 | 5.000 | na | na | na Bat_Cycle_Cnt | 0.000 | cycles | ok | na | na | na | na | na | na Bat_Power_Fault | 0x0 | discrete | 0x0180| na | na | na | na | na | na Bat_Dsg_FET_Flt | 0x0 | discrete | 0x0280| na | na | na | na | na | na Bat_Chg_FET_Flt | 0x0 | discrete | 0x0280| na | na | na | na | na | na Bat_Pack_Invalid | 0x0 | discrete | 0x0180| na | na | na | na | na | na Bat_Lrn_Active | 0x0 | discrete | 0x0180| na | na | na | na | na | na

Excluded the false-positive NVMEM battery alerts option, as described in AFF-A250 reporting BATTERY (capacity low) alert and BUG 1447722
Monitoring EMS.log for The NVMEM battery capacity is below normal at the end of the message, we see (# cycles)
- The cycles number dropped below 5