机箱电源已降级，电源输出出现故障
适用于
- ONTAP 9
- 控制器机箱电源
- 磁盘架机箱电源
问题
- 一个电源单元（PSU）出现故障，注意 LED 开启
- HA 对中的两个节点均触发了 AutoSupport 消息：
[node_name: env_mgr: callhome.chassis.ps.replace:error]: Call home for CHASSIS POWER SUPPLY NEED TO BE REPLACED: PS 1
- Event Management System (EMS) 消息已报告：
[node_name: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 has failed
[node_name: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 Power Output has failed
[node_name: env_mgr: monitor.chassisPowerSupply.off:notice]: Chassis power supply 1 off
- 节点在系统健康警报输出和事件日志中报告
CriticalFruMultiFaultAlert：
[Node-01: mgwd: callhome.hm.alert.critical:alert]: Call home for Health Monitor process cphm: CriticalFruMultiFaultAlert[XXXXXXX].