电池（放电 FET 关闭）严重告警回传

• ONTAP 9
• AFF A70
• AFF A90

• 来自控制台的错误报告：

WARNING:  The battery is experiencing a critical failure:
- Battery charge FET is off
Without a working battery, the system cannot retain data
during a power outage, which can result in data loss.
Power down the system and verify that the battery is
properly installed.
To ignore this failure and boot the system in a mode
where data loss might occur, press 'c' followed by 'Enter'

• 节点引导失败，报告以下错误：

Nov 29 06:51:03 [Node:callhome.battery.failure:EMERGENCY]: Call home for BATTERY (discharge FET off) CRITICAL.
Nov 29 06:51:48 [Node:callhome.chassis.overtemp:EMERGENCY]: Call home for CHASSIS OVER TEMPERATURE SHUTDOWN
Nov 29 07:38:34 [Node:nv.flash.unable.to.monitor:ALERT]: Unable to monitor NVRAM device "NVRAM12".
Nov 29 07:50:12 [Node:nvram.battery.dischargeFET.off:EMERGENCY]: The NVRAM battery discharge FET is off. To prevent data loss, the system will shut down in 20 minutes.
Nov 29 07:50:34 [Node:monitor.temp.unreadable:error]: The controller temperature (NVRAM M2 Temp) is not readable.
Nov 29 07:50:34 [Node:monitor.temp.unreadable:error]: The controller temperature (NVRAM FPGA Temp) is not readable.
Nov 29 07:50:56 [Node:monitor.chassisTemperature.state.unknown:ALERT]: Chassis temperature state is unknown: BBU/NVRAM temp sensors are unreadable. System will be shutdown in 2 minutes.
Nov 29 07:51:12 [Node:callhome.battery.failure:EMERGENCY]: Call home for BATTERY (discharge FET off) CRITICAL.
Nov 29 07:51:56 [Node:callhome.chassis.overtemp:EMERGENCY]: Call home for CHASSIS OVER TEMPERATURE SHUTDOWN

• BMC 固件是最新的。