H3C出现如下报错信息:
[H3C]fan prefer-direction slot 1 power%Jan 1 04:30:13:401 2013 H3C DEV/1/FAN_DIRECTION_NOT_PREFERRED: Fan 1 airflow direction is not preferred on slot 1, please check it.
%Jan 1 04:30:13:404 2013 H3C DEV/1/FAN_DIRECTION_NOT_PREFERRED: Fan 2 airflow direction is not preferred on slot 1, please check it.
[H3C]%Jan 1 04:30:46:202 2013 H3C DEV/5/FAN_RECOVERED: Fan 1 recovered.
%Jan 1 04:30:46:207 2013 H3C DEV/5/FAN_RECOVERED: Fan 2 recovered.
解决办法:
检查交换机风扇配置信息发现交换机风扇的实际气流方向为:Airflow Direction: Port-to-power;而配置用户下看到风扇模块的优选气流方向为:Prefer Airflow Direction: Power-to-port,两者不一致(交换机风扇反转),导致交换机风扇状态为:FanDirectionFault,风扇信号灯告警,交换机SYS信号灯告警。
处理方法:
因为风扇模块的实际气流方向是无法改变的,只能去改变风扇模块的优选气流方向和风扇实际气流方向一致,操作步骤如下:
[SW]dis fan