PVE + FNOS直通硬盘后，硬盘仓风扇PWM调速 • 薇尔薇

在PVE中安装了FNOS后，PVE中无法获取到硬盘温度数据，本文主要解决PVE中获取FNOS温度数据

FNOS温度数据导出#

FNOS中通过prometheus-community/smartctl_exporter ↗导出硬盘温度数据

services:
  smartctl-exporter:
    image: prometheuscommunity/smartctl-exporter
    privileged: true
    user: root
    ports:
      - "9633:9633"

yaml

PVE中获取、解析、写入数据#

新建文件/usr/local/bin/get_max_hdd_temp.sh用于通过API获取温度数据此处获取所有硬盘温度数据后，取最大值

#!/bin/bash

# smartctl_exporter 数据地址
EXPORTER_URL="http://10.115.15.20:9633/metrics"

# 默认最大温度值（异常时使用，单位：°C）
DEFAULT_MAX_TEMP=77

# 使用 curl 获取数据
TEMP_DATA=$(curl -s "$EXPORTER_URL" 2>/dev/null)

# 检查 curl 是否成功获取数据
if [[ $? -ne 0 || -z "$TEMP_DATA" ]]; then
    echo "Error: Failed to fetch data from $EXPORTER_URL" >&2
    echo $(( DEFAULT_MAX_TEMP * 1000 ))
    exit 1
fi

# 解析所有硬盘的当前温度
TEMP_DATA=$(echo "$TEMP_DATA" | grep 'smartctl_device_temperature' | grep 'temperature_type="current"' | awk '{print $2}')

# 检查是否有有效的温度数据
if [[ -z "$TEMP_DATA" ]]; then
    echo "Error: No valid temperature data found in the response from $EXPORTER_URL" >&2
    echo $(( DEFAULT_MAX_TEMP * 1000 ))
    exit 1
fi

# 初始化最大温度值
MAX_TEMP=0

# 遍历所有温度值，找出最大值
for temp in $TEMP_DATA; do
    # 忽略无效或零值（如 0°C）
    if [[ "$temp" =~ ^[0-9]+$ ]] && (( temp > MAX_TEMP )); then
        MAX_TEMP=$temp
    fi
done

# 如果最大温度仍为 0（可能所有硬盘温度均为 0 或无效），输出默认值
if (( MAX_TEMP == 0 )); then
    echo "Error: All temperatures are invalid or zero. Using default value." >&2
    echo $(( DEFAULT_MAX_TEMP * 1000 ))
    exit 1
fi

# 输出最大温度值（单位：毫摄氏度，乘以 1000）
echo $(( MAX_TEMP * 1000 ))

bash

将数据写入文件创建文件/usr/local/bin/write_hdd_temp.sh将获取到的温度数据写入/var/lib/hdd_temp/max_hdd_temp.txt

#!/bin/bash

# 获取最大温度值
MAX_TEMP=$(/usr/local/bin/get_max_hdd_temp.sh)

# 获取当前时间
CURRENT_TIME=$(date +"%Y-%m-%d %H:%M:%S")

# 写入文件
echo "$MAX_TEMP" > /var/lib/hdd_temp/max_hdd_temp.txt

# 记录日志到系统日志中
logger "Virtual Temperature Sensor: Updated HDD temperature to $MAX_TEMP°C at $CURRENT_TIME"

# 输出调试信息到标准输出（可选）
echo "Updated HDD temperature to $MAX_TEMP°C at $CURRENT_TIME"

bash

定时执行#

使用systemctl定制执行以上脚本，15秒更新一次温度数据

创建文件/etc/systemd/system/write-hdd-temp.service

[Unit]
Description=Write HDD temperature to file

[Service]
Type=oneshot
ExecStart=/usr/local/bin/write_hdd_temp.sh

txt

创建文件/etc/systemd/system/write-hdd-temp.timer

[Unit]
Description=Run virtual-temp-sensor service every 15 seconds

[Timer]
OnBootSec=15sec
OnUnitActiveSec=15sec
AccuracySec=1sec

[Install]
WantedBy=timers.target

txt

启动定时任务

sudo systemctl daemon-reload
sudo systemctl enable write-hdd-temp.timer
sudo systemctl start write-hdd-temp.timer

bash

配置fancontrol#

硬盘风扇为7，CPU风扇为2和6

Configuration file generated by pwmconfig, changes will be lost
INTERVAL=10
DEVPATH=hwmon2=devices/platform/coretemp.0 hwmon3=devices/platform/nct6775.2592
DEVNAME=hwmon2=coretemp hwmon3=nct6798

# 温度与 PWM 对应关系
FCTEMPS=hwmon3/pwm2=hwmon2/temp1_input hwmon3/pwm7=hwmon2/temp1_input hwmon3/pwm6=/var/lib/hdd_temp/max_hdd_temp.txt

# 风扇与 PWM 对应关系
FCFANS=hwmon3/pwm6=hwmon3/fan6_input hwmon3/pwm2=hwmon3/fan2_input hwmon3/pwm7=hwmon3/fan7_input

# 最低和最高温度
MINTEMP=hwmon3/pwm2=40 hwmon3/pwm7=40 hwmon3/pwm6=35
MAXTEMP=hwmon3/pwm2=70 hwmon3/pwm7=70 hwmon3/pwm6=45

# 最低启动和停止 PWM 值
MINSTART=hwmon3/pwm2=150 hwmon3/pwm7=100 hwmon3/pwm6=80
MINSTOP=hwmon3/pwm2=0 hwmon3/pwm7=24 hwmon3/pwm6=80

# 最低和最高 PWM 值
MINPWM=hwmon3/pwm7=0 hwmon3/pwm6=80
MAXPWM=hwmon3/pwm2=255 hwmon3/pwm7=255 hwmon3/pwm6=255

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