H3C交接机风扇报警：Fan 1 airflow direction is not preferred on slot 1(port-to-power、power to port)

H3C交接机风扇报警：Fan 1 airflow direction is not preferred on slot 1(port-to-power、power to port)

H3C S5830V2[S5820V2]系列以太网交换机 故障处理手册-6W101-整本手册.pdf

报错信息：
%Jan  2 03:20:47:802 2011 H3C DEV/1/FAN_DIRECTION_NOT_PREFERRED: Fan 1 airflow direction is not preferred on slot 1, please check it.
%Jan  2 03:20:47:803 2011 H3C DEV/1/FAN_DIRECTION_NOT_PREFERRED: Fan 2 airflow direction is not preferred on slot 1, please check it.
处理方式：
在视图模式下输入命令：fan prefer-direction slot 2 port-to-power
分别修改两个风扇的风道就OK了。
最后dis fan 查看风扇状态即可。
把风扇吹风风向调为一致。即风扇的转向调为一致。
fan prefer-direction slot 1 port-to-power
 fan prefer-direction slot 2 port-to-power
 fan prefer-direction slot 3 port-to-power
[H3C] fan prefer-direction slot 1 ?
  port-to-power  From port to power
  power-to-port  From power to port
[H3C]fan prefer-direction slot 1
显示设备风扇的工作状态  display fan [ fan-id ]

<H3C-SW>display fan
 Slot 1:
 Fan 1:
 State    : Normal
 Airflow Direction: Port-to-power
 Prefer Airflow Direction: Port-to-power
 Fan 2:
 State    : Normal
 Airflow Direction: Port-to-power
 Prefer Airflow Direction: Port-to-power
<H3C-SW>
<H3C-SW>system-view
System View: return to User View with Ctrl+Z.
[H3C-SW]fan
[H3C-SW]fan ?
  prefer-direction  Set the preferred fan direction
[H3C-SW]fan pre
[H3C-SW]fan prefer-direction ?
  slot  Specify the slot number

[H3C-SW]fan prefer-direction slot ?
  <1>  Slot number
[H3C-SW]fan prefer-direction slot 1 ?
  port-to-power  From port to power
  power-to-port  From power to port
[H3C-SW]fan prefer-direction slot 1 port-to-power

#配置此命令后，告警消失。
[H3C-SW]fan prefer-direction slot ?
  <1>  Slot number
[H3C-SW]
[H3C-SW]dis fan
 Slot 1:
 Fan 1:
 State    : Normal
 Airflow Direction: Port-to-power
 Prefer Airflow Direction: Port-to-power
 Fan 2:
 State    : Normal
 Airflow Direction: Port-to-power
 Prefer Airflow Direction: Port-to-power
[H3C-SW]

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