NVRAM Battery Low Alert on FAS8300/FAS8700/AFF A400 system
Applies to
- AFF A400
- FAS8300
- FAS8700
- BMC 13.11P1 and later
Issue
BATTERY (capacity low)AutoSupport mail sent.- ONTAP event messages (
EMS-LOG-FILE) example:
The NVMEM battery charger is disabled because a bad charger circuit is detected.
....
ALERT monitor.shutdown.nvramLowBattery.pending: NVRAM battery is dangerously low. Halting system in 24 hours. Replace the battery immediately!
ALERT callhome.battery.low: Call home for BATTERY_LOW.
EMERGENCY monitor.nvramLowBattery: NVRAM battery is dangerously low.
ERROR nvmem.battery.capLowWarn: The NVMEM battery capacity is below normal (4 cycles).ALERT monitor.shutdown.nvramLowBattery.pending: NVRAM battery is dangerously low. Halting system in 23 hours. Replace the battery immediately!- NVMEM battery capacity is below normal. Example:
::*> system node environment sensors show -name "Bat Curr"|"Bat Dstg Cycles"
Node Sensor State Value/Units Crit-Low Warn-Low Warn-Hi Crit-Hi
---- --------------------- ------ ----------- -------- -------- ------- -------
Node01
Bat Curr normal 0 mA - - 1225 1475
Bat Dstg Cycles warn-low 4 cycles 2 5 - -
Node02
Bat Curr normal 0 mA - - 1225 1475
Bat Dstg Cycles normal 14 cycles 2 5 - -- Drop in relative charge reported in
SP-LATEST-STATISTICSAutoSupport section. Example:
Tue Jul 08, 2025 00:27:02 +0530
RelativeCharge : 21 %
Tue Jul 08, 2025 13:13:18 +0530
RelativeCharge : 21 %
Wed Jul 09, 2025 00:17:03 +0530
RelativeCharge : 19 %
Wed Jul 09, 2025 13:13:18 +0530
RelativeCharge : 19 %
Thu Jul 10, 2025 00:37:04 +0530
RelativeCharge : 18 %
Thu Jul 10, 2025 13:13:18 +0530
RelativeCharge : 18 %
system battery showfrom BMC shows:
- Current field shows "0 mA".
- RelativeCharge field show below 71%.
- ChargingCurrent field shows "1000 mA".