【用Ubuntu构建家庭服务器】02 风扇自动风速配置

1 硬件配置

1.1 主板

主板: 华擎 ASRock H77 Pro4-M

1.2 风扇常识

2 传感器配置

2.1 传感器检测软件安装

lm-sensors

sudo apt install lm-sensors # 传感器配置程序
sudo apt install smartmontools # 硬盘监控工具

2.2 硬件设备温度传感器

# sudo sensors-detect # 传感器内核配置,检测额外的传感器
sensors # 查看hwmon传感器状态(不含硬盘)

## 直接从系统读取信息
cat /sys/class/hwmon/hwmon1/name # 获取温度监控设备名
# coretemp
cat /sys/class/hwmon/hwmon1/temp1_input # 获取温度监控值
# 31000
cat /sys/class/thermal/thermal_zone2/temp # 获取温度域的值

逐步添加风扇，看风扇转速对应风扇关系

2.3 硬盘温度读取

sudo smartctl -a /dev/sda | grep Temperature # 获取硬盘温度
sudo smartctl -A /dev/sda # 硬盘SMART属性
sudo smartctl -i /dev/sdX #硬盘基本信息

2.4 风扇转速传感器

使用sensors命令，逐步添加风扇，看风扇对应关系

3 控制器配置

3.1 PWM值对比风扇转速做对应关系

cat /sys/class/hwmon/hwmon2/pwm3 # 获取PWM设置
sensors # 读取风扇值

3.2 PWM与风扇转速对照表

sudo apt install fancontrol # 风扇控制器
sudo pwmconfig

Found the following devices:
hwmon0 is nvme
hwmon1 is coretemp
hwmon2 is nct6776
hwmon3 is hidpp_battery_0

Found the following PWM controls:
hwmon2/pwm1 current value: 255
hwmon2/pwm2 current value: 228
hwmon2/pwm2 is currently setup for automatic speed control.
In general, automatic mode is preferred over manual mode, as
it is more efficient and it reacts faster. Are you sure that
you want to setup this output for manual control? (n)
hwmon2/pwm3 current value: 255

Giving the fans some time to reach full speed...
Found the following fan sensors:
hwmon2/fan1_input current speed: 1518 RPM
hwmon2/fan2_input current speed: 2235 RPM
hwmon2/fan3_input current speed: 0 ... skipping!
hwmon2/fan4_input current speed: 1573 RPM
hwmon2/fan5_input current speed: 1506 RPM

PWM3与fan5转速对照表

3.3 风扇控制策略

3.4 fancontrol配置参数

grass@grassLinux:~$ cat /etc/fancontrol
# Configuration file generated by pwmconfig, changes will be lost
INTERVAL=10
DEVPATH=hwmon0=devices/pci0000:00/0000:00:1c.0/0000:01:00.0/nvme/nvme0 hwmon1=devices/platform/coretemp.0 hwmon2=devices/platform/nct6775.656
DEVNAME=hwmon0=nvme hwmon1=coretemp hwmon2=nct6776
FCTEMPS=hwmon2/pwm1=hwmon0/temp1_input hwmon2/pwm3=hwmon1/temp1_input
FCFANS=hwmon2/pwm1=hwmon2/fan1_input hwmon2/pwm3=hwmon2/fan5_input
MINTEMP=hwmon2/pwm1=32 hwmon2/pwm3=35
MAXTEMP=hwmon2/pwm1=50 hwmon2/pwm3=55
MINSTART=hwmon2/pwm1=150 hwmon2/pwm3=60
MINSTOP=hwmon2/pwm1=0 hwmon2/pwm3=45
MAXPWM=hwmon2/pwm1=255 hwmon2/pwm3=240