Script to set the fan speed on HP Server trough iLO firmware

fanspeed.sh

#!/bin/bash

# Variables
ilo_user="#"          # Replace with your iLO username
ilo_pass="#"          # Replace with your iLO password
ilo_host="#"          # Replace with your iLO hostname or IP address

# Options to enable older key exchange and host key methods
ssh_options="-o KexAlgorithms=diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 -o HostKeyAlgorithms=ssh-rsa,ssh-dss -o StrictHostKeyChecking=no"

# Loop through the sensor numbers and send the command
for sensor in {01..46}
do
    #echo "Setting fan PID $sensor to 1600 lo"
    # SSH into iLO and send the command
    sshpass -p $ilo_pass ssh $ssh_options $ilo_user@$ilo_host "fan pid $sensor lo 1600"
done

echo "All commands sent."

@clemone210

This looks great, do you know on which ILO versions this works ? Do you need to flash a certain (custom) ILO beforehand ?

The last version this works was 2.77 I believe.
Indeed you need to flash a modified version of iLO.
Here you can find additional information/resources:
https://www.reddit.com/r/homelab/comments/sx3ldo/hp_ilo4_v277_unlocked_access_to_fan_controls/