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维护 SRX3400 服务网关上的风扇盘
风扇盘包含多个风扇，它们协同工作以冷却服务网关组件。 如果一个风扇出现故障，路由引擎会调整剩余风扇的速度，以维护正常冷却。 风扇出现故障时触发红色报警，卸下风扇盘时触发黄色报警和红色报警。
要显示冷却系统的状态，请输入 show chassis environment 命令。 输出类似以下内容：
user@host> show chassis environment
Class Item Status Measurement
Temp PEM 0 OK
PEM 1 OK
Routing Engine 0 OK
Routing Engine 1 Absent
CB 0 Intake OK 36 degrees C / 96 degrees F
CB 0 Exhaust A OK 43 degrees C / 109 degrees F
CB 0 Mezz OK 45 degrees C / 113 degrees F
CB 1 Intake Absent
CB 1 Exhaust A Absent
CB 1 Mezz Absent
FPC 0 Intake OK 35 degrees C / 95 degrees F
FPC 0 Exhaust A OK 35 degrees C / 95 degrees F
FPC 0 Exhaust B OK 36 degrees C / 96 degrees F
FPC 0 SF OK 50 degrees C / 122 degrees F
FPC 1 Intake OK 34 degrees C / 93 degrees F
FPC 1 Exhaust A OK 41 degrees C / 105 degrees F
FPC 1 XLR OK 53 degrees C / 127 degrees F
FPC 2 Intake OK 34 degrees C / 93 degrees F
FPC 2 Exhaust A OK 44 degrees C / 111 degrees F
FPC 4 Intake OK 40 degrees C / 104 degrees F
FPC 4 Exhaust A OK 45 degrees C / 113 degrees F
FPC 6 Intake OK 38 degrees C / 100 degrees F
FPC 6 Exhaust A OK 44 degrees C / 111 degrees F
Fans Fan 1 OK Spinning at intermediate-speed
Fan 2 OK Spinning at intermediate-speed
Fan 3 OK Spinning at intermediate-speed
Fan 4 OK Spinning at intermediate-speed
