S7703风扇声音较大
问题描述
S7703风扇声音比正常运行状态较大。
处理过程
1.查看设备健康信息，风扇转速达到70%，稍高于正常转速，但是各个板卡的温度都不高：
[HUAWEI] display health
-------------------------------------------------------------------------------
Slot Card Sensor SensorName Status Current(V) Lower(V) Upper(V)
-------------------------------------------------------------------------------
1 - 3 3.3V Normal 3.3320 2.6460 3.9592
- 4 1.05V Normal 1.0780 0.8428 1.2642
- 5 1.25V Normal 1.2740 0.9996 1.4994
- 6 1.8V Normal 1.8130 1.4406 2.1560
- 7 2.5V Normal 2.5088 1.9992 2.9988
- 8 12V Normal 11.9520 9.5450 14.3590
- 9 1.2V_COMBO Normal 1.2152 0.9604 1.4406
- 10 2.5V_MII Normal 2.5088 1.9992 2.9988
4 - 3 3.3V Normal 3.3124 2.6460 3.9592
- 4 2.5V Normal 2.5088 1.9992 2.9988
- 5 12V Normal 12.0350 9.5450 14.3590
- 6 1.8V Normal 1.7934 1.4406 2.1560
- 7 1.1V Normal 1.1074 0.8820 1.3230
5 - 3 3.3V Normal 3.3124 2.6460 3.9592
- 4 2.5V Normal 2.5088 1.9992 2.9988
- 5 12V Normal 12.0350 9.5450 14.3590
- 6 1.8V Normal 1.8032 1.4406 2.1560
- 7 1.1V Normal 1.1074 0.8820 1.3230
-------------------------------------------------------------------------------
Slot Card Sensor Status Current(C) Lower(C) Lower Upper(C) Upper
Resume(C) Resume(C)
-------------------------------------------------------------------------------
1 - 1 Normal 34 0 3 67 65
4 - 1 Normal 38 0 3 62 60
5 - 1 Normal 40 0 3 62 60
--------------------------------------------------------------------------
PowerID Online Mode State Current(A) Voltage(V) RealPwr(W)
--------------------------------------------------------------------------
PWR1 Present AC Supply 0.89 53.66 47.76
PWR2 Present AC Supply 0.56 53.58 30.00
PoE1 Absent - - - - -
-------------------------------------------------------------------------------
FanID FanNum Online Register Speed Mode Airflow
-------------------------------------------------------------------------------
FAN1 [1-2] Present Registered 70% (2715) AUTO Side-to-Back
1 2730
2 2700
2.查看光模块信息，发现1/0/20口的光模块温度超过了65度：
[HUAWEI] display transceiver verbose
GigabitEthernet1/0/20 transceiver information:
-------------------------------------------------------------
Common information:
Transceiver Type :1000_BASE_LX_SFP
Connector Type :LC
Wavelength(nm) :1310
Transfer Distance(m) :10000(9um)
Digital Diagnostic Monitoring :YES
Vendor Name :HUAWEI
Vendor Part Number :02315200
Ordering Name :
-------------------------------------------------------------
Manufacture information:
Manu. Serial Number :EC135100240868
Manufacturing Date :2013-12-19
Vendor Name :HUAWEI
-------------------------------------------------------------
Alarm information:
RX loss of signal
RX power low
-------------------------------------------------------------
Diagnostic information:
Temperature(°C) :66
Voltage(V) :3.40
Bias Current(mA) :29.32
Bias High Threshold(mA) :100.00
Bias Low Threshold(mA) :0.00
Current Rx Power(dBM) :-40.00
Default Rx Power High Threshold(dBM) :-3.00
Default Rx Power Low Threshold(dBM) :-24.95
Current Tx Power(dBM) :-6.13
Default Tx Power High Threshold(dBM) :-3.00
Default Tx Power Low Threshold(dBM) :-10.00
User Set Rx Power High Threshold(dBM) :-3.00
User Set Rx Power Low Threshold(dBM) :-24.95
User Set Tx Power High Threshold(dBM) :-3.00
User Set Tx Power Low Threshold(dBM) :-10.00
-------------------------------------------------------------
3.设备会通过监测单板上光模块的温度对风扇的转速进行调整，将设备的温度控制在合理的范围内。当光模块的温度高于风扇加速温度阈值时，加快风扇转速，加速散热；当光模块温度低于风扇降速温度阈值时，降低风扇转速，节约能源。缺省情况下，风扇降速温度阈值为60℃，风扇加速温度阈值为65℃。设备1/0/20口的光模块温度超过65度，设备加速转速到70%，声音稍大是正常现象。
也可以根据实际环境设置风扇减速加速的阈值：
# 配置设备光模块的温度超时67℃时风扇加速，温度低于60℃时风扇减速。
<HUAWEI> system-view
[HUAWEI] set transceiver temperature threshold 60 67 all
根因
设备1/0/20口的光模块温度超过65度，设备加速转速到70%，声音稍大是正常现象。
建议与总结
风扇转速过高时，建议同时确认板卡和光模块等器件的温度是否正常，温度过高的器件需要关注，机房需要部署良好的散热环境。
