由于主板故障导致反复出现 PSU 传感器"不可读"事件

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适用于

AFF-A400
ONTAP 9.13.1

问题

尽管之前已更换 PSU 并升级了 Service Processor 固件，但仍观察到重复的 PSU 故障事件。
EMS 日志显示 PSU1 的传感器值不可读，随后显示恢复消息：

示例：

[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 VIN is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 VOUT is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 CurrIIN is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 IOUT is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 PIN is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 POUT is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 1 is degraded: PSU1 FAN is Unreadable
[Node02:env_mgr:monitor.chassisPowerSupply.ok:info]: Chassis power supply 1 is OK.