Node down after BATTERY wrong charge AutoSupport ALERT

Applies to

AFF Series
FAS Series

Issue

• EMS messages for one node in the cluster: 

Sat Dec 19 16:22:32 +0100 [CLUSTERBA-CTRLA: env_mgr: nvmem.battery.wrongCharge:alert]: The NVMEM battery charger is charging the battery even though the battery is not requesting to be charged. To prevent data loss, the system will shut down in 24 hours.
Sat Dec 19 16:23:27 +0100 [CLUSTERBA-CTRLA: env_mgr: callhome.battery.warning:alert]: Call home for BATTERY (wrong charge) WARNING.
... (repeated hourly)
Sun Dec 20 15:23:38 +0100 [CLUSTERBA-CTRLA: env_mgr: nvmem.battery.wrongCharge:alert]: The NVMEM battery charger is charging the battery even though the battery is not requesting to be charged. To prevent data loss, the system will shut down in 60 minutes.
Sun Dec 20 15:24:18 +0100 [CLUSTERBA-CTRLA: env_mgr: callhome.battery.warning:alert]: Call home for BATTERY (wrong charge) WARNING.
Sun Dec 20 16:22:30 +0100 [CLUSTERBA-CTRLA: env_mgr: monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Environmental Reason Shutdown (Battery charging current failed)

• Platform sensors output for the NVRAM Battery:

Battery Charge Failed?       discrete fault   normal TRUE
Battery Capacity Message     discrete failed  failed
Bat Curr                     current  normal  -40 mA
Bat Charging State           discrete fault   normal WRONG_CHARGE

• The Service Processor firmware and internal switch firmware are updated to the latest version available.
• Service Processor System log output:

Jan  7 14:17:14 (none) env_mgr[1035]: Payload EMS: EMS_nvmem_battery_wrongCharge(in 24 hours)
Jan  7 14:17:46 (none) env_mgr[1035]: Payload EMS: EMS_callhome_battery_warning(BATTERY (wrong charge))
Jan  7 15:17:20 (none) env_mgr[1035]: Payload EMS: EMS_nvmem_battery_wrongCharge(in 23 hours)
Jan  7 15:17:47 (none) env_mgr[1035]: Payload EMS: EMS_callhome_battery_warning(BATTERY (wrong charge))
...

• Service Processor events output: 

Record 992: Thu Jan  7 15:17:20 2021 [IPMI.notice]: b502 | 02 | EVT: 0301ffff | Attn_Sensor1 | Assertion Event, "State Asserted"
Record 993: Thu Jan  7 15:17:27 2021 [IPMI.notice]: b602 | 02 | EVT: 0300ffff | Attn_Sensor1 | Assertion Event, "State Deasserted"
 

• The node goes down when the counter ends after 24 hours