Currently, I use the following command to set the fan speed of the server after it starts up:

```

ipmitool -I lanplus -H 192.168.31.217 -U root -P calvin raw 0x30 0x30 0x01 0x00

ipmitool -I lanplus -H 192.168.31.217 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x0a

```

The problem is whenever the server restarts, the fan speed will change back to its old state.

That’s really a problem, for example, if I go out and the power goes out and then comes back on. There will be a huge noise made by the server before I get home.

  • HTTP_404_NotFound@alien.topBEnglish
    1·
    1 year ago

    I personally, use a bash script, which runs as a daemon, that dynamically sets the fan speed based on temps.

    So, under idle, the servers run nearly silent. Under load, the fans can spin up.

    When the script/daemon stops, it restores the default fan curve.

    • Vyerni11@alien.topBEnglish
      1·
      1 year ago

      How I do it.

      A bash script that runs on my Truenas Server that manages the fan speeds of my MD1200 and my server. Watches for temperatures and ramps accordingly.