dalkain/unraid-supermicro-ipmi-auto-fan-control

A pair of bash scripts to automate control of the fan speeds for a SuperMicro board using ipmitool on Unraid.

NO LONGER ACTIVELY MAINTAINED

This repository is being archived. As I am no longer running a SuperMicro server, I will not be making any further updates nor providing any troubleshooting assistance. Feel free to use/fork/modify/whatever as long as the GPLv3 license is followed.

unRAID SuperMicro IPMI Auto Fan Control

A pair of dirty little bash scripts to automate control of the fan speeds for a SuperMicro board using ipmitool.

What does it do?

• Gather all of the CPU package temps, determine max
• Gather all of the drive temps, determine max
• Set speeds of the fan zones based configurable temperature thresholds (5 speed settings per fan zone)

Why?

It started out quite awhile ago with me having trouble getting plugins/tools designed to do this to work right and just being very tired of loud fans (especially since my server is in my home office). I still wanted the fans to crank up some when heavy processing was being done, though I certainly don't need anywhere near the full throughput of those stock supermicro fans or the Dynatron CPU coolers I have installed. It's evolved over time and I've added in-line comment instructions on how to modify it to suit your own needs.

How to run:

This pair of scripts is specifically designed for unRAID's 'User Scripts' plugin.

• Install the User Scripts plugin
• Install ipmitool (can be installed via the NerdPack GUI plugin)
• Add impi_fans_startup.sh to User Scripts
  • Set to run 'At Startup of Array'
    • NOTE: If do not want to restart your server/array after adding this script, you must also click the "Run Script" button on ipmi_fans_startup.sh one time to force the required fan modes
• Add ipmi_fans_auto.sh to User Scripts
  • Edit parameters within the script (read script comments for instructions) to suit your needs
  • Set to run 'Custom' and define a cron schedule in the field to run regularly (e.g. */5 * * * * for every 5 minutes)

Example of how User Scripts should look once scheduled:

Other Notes:

• The server I used these scripts with had an X10DRi-T4+ motherboard. I have decommissioned that server and I am no longer actively using these scripts.
• I've used/tested these up to unRAID v6.10.3. I do remember there being a minor (but breaking) change to the awk syntax when I upgraded to 6.10.x from 6.9.2.
• While this was designed for and only works out-of-the-box with unRAID I'm sure it can be adapted to other linux systems with a bit of knowhow. You'd need to update how the script retrieves the CPU/HDD temps for your linux flavor of choice, but the ipmitool portions should work fine.