Fan Control Script for Supermicro

Resources

• Supermicro X9/X10/X11 Fan Speed Control

Description

This Python script is designed to automatically control the fan speeds of a server based on the temperatures of the hard drives and the CPU. It uses IPMI tools to adjust fan speeds in response to temperature changes, ensuring optimal cooling and performance of the server.

Features

• Dynamically adjusts fan speeds based on HDD and CPU temperatures.
• Customizable temperature thresholds for different fan speeds.
• Supports different zones (CPU and peripheral) for targeted cooling.
• Dry run mode for testing without applying changes.
• Continuous monitoring with adjustable loop sleep time.

TODO

• Setting up logs
• Create a web interface to display temperature data ??
• Setup a Prometheus exporter??
• Restrict this script to only works on DEBIAN and TrueNAS SCALE

Requirements

• Python 3.x
• Access to IPMI on the server.

Installation

Ensure Python 3.x is installed on your server.
Install ipmitool on your server or ensure it's already installed ( Debian default path : /usr/bin/ipmitool)

Then Clone the project on your folder : git clone https://github.com/SeiyaGame/fan_control_supermicro.git

Or download the script and run it :

Note

Run the script at your own risk !

Warning

Make sure you are in the folder where you want to install fan_control !

cd folder_where_you_want
wget https://raw.githubusercontent.com/SeiyaGame/fan_control_supermicro/main/install_script.sh
chmod +x install_script.sh && ./install_script.sh

Finally, you can copy the config.sample.py as config.py and then edit the variables in the file.
After that start the service: service fan-control start or run the script python3 fan_control_script.py

To see logs you can use the command fan-control-logs which is added when you run the script before !
Or you can do it manually with tail -f -n 15 /mnt/tank/scripts/fan_control/logs/fan_control.log

Usage

1. Configure the fan speed grids (disk_fan_speed_grid and cpu_fan_speed_grid) as per your requirements.
2. Run the script: python3 fan_control_script.py
3. Optionally, enable dry run mode by adding -d or --dry_run to test without applying changes.
4. Optionally, you can send logs message to a webhook url by editing variables in the file config.py or by adding --webhook_url 'YOUR_URL'

Output in your console

Fan mode set to FULL
Set fan speed for the peripheral zone to 70% (0x46) (Temperature range: 35 → 37)
Set fan speed for the cpu zone to 45% (0x2d) (Temperature range: 26 → 34)
-----------
HDD ↑ 36°C (35 → 37) 70% 💨 | CPU 30°C (26 → 34) 45% 💨

FAN1(700 RPM) | FAN2(700 RPM) | FAN3(700 RPM) | FAN4 | FAN5(700 RPM) | FANA(1000 RPM) | FANB(1000 RPM)

  sda   - 32°C - S/N: ZCT3S9M0     |   sdb   - 27°C - S/N: HLH01J2B     |   sdc   - 32°C - S/N: 2244E6812B23
  sdd   - 34°C - S/N: 2244E6812A49 |   sde   - 33°C - S/N: ZR13LBZD     |   sdf   - 36°C - S/N: ZCT3S7WH
  sdg   - 31°C - S/N: 5PH7PMDE     |   sdh   - 34°C - S/N: ZCT3S1HP     |   sdi   - 34°C - S/N: 5PH7P38E
  sdj   - 34°C - S/N: 5PH7NZEE     |   sdk   - 35°C - S/N: 5PH7J96F     | nvme0n1 - 48°C - S/N: 21337W443408

Configuration

• Fan Speed Grids: Adjust the temperature ranges and corresponding fan speeds in the script.
• Loop Sleep Time: Set the time interval between each monitoring loop.

Truenas Scale Setup

Follow the step here but install the script in a dataset of your pool for exemple in /mnt/tank/scripts/fan_control
Then go the Truenas scale web interface in System Settings -> Advanced -> Init/Shutdown Scripts and click Add

• Description: Script to control fan speed
• Type: Script
• Script: /mnt/tank/scripts/fan_control/setup_fan_control_supermicro.sh
• When: Post Init
• Enable: Yes

Limitations

• Currently, supports only Debian-based systems and TrueNAS Scale. (planned to restrict)
• Does not include a web interface or Prometheus exporter (planned for future updates).

Contributing

Contributions to this project are welcome. Please fork the repository and submit pull requests for any enhancements.