Daemon that regulates fan speeds based on temperature sensors; speed curves can be tuned at runtime with a CLI tool. Supports Dell PowerEdge server hardware.
If you use the Nix package manager, there's a package in my
overlay; enable the service with
services.fanservice.enable = true; and add the fanservice package to your
user environment.
Otherwise, you can build fanservice with cargo:
$ cargo install fanservice
You'll probably want to run it as a system service. See the example systemd unit file.
Once your daemon is running, you can send it control messages. Let's try turning up the quiet-factor a little:
fanservice set -q 1.3
(You must run the client command as a user who has access to the daemon's socket file.)
fanservice always works to ensure all system temperatures are within
acceptable ranges, but within those ranges you have a choice of how
aggressively to keep the system cool.
- at quiet-factors below 1, the fans run more aggressively than at 1 (at
-q 0, they always run at 100%) - at quiet-factor 1, the fans respond linearly to temperature
- at factors above 1, the fans don't run as loud unless the system gets hot
- at really high factors, the fans will run near minimum speed until temperatures reach the top of the acceptable range, and then they will quickly approach 100%
For some reference points, I use -q 1.3 during the daytime, and -q 1.8 when
I'm trying to sleep in the same room as my rack. You'll want to experiment and
see what works best for your climate, workload, and noise concerns.