SmartFan DC Speed Controls for 2-wire or 3-wire Fans & MotorsĪnalog (0-5V, 0-10V, 0-20mA) Remote Potentiometer SmartFan Fan Monitoring & Fan Failure Alarms.SmartFan PWM Speed Controls with built-in Alarms for 4-wire Fans & Motors.SmartFan DC Speed Controls with built-in Alarms for 3-wire Fans & Motors.SmartFan DC Speed Controls for 2-wire or 3-wire Fans & Motors.Standard products are shown by fan and motor type below. SmartFan DC controls to regulate speed based on temperature, analog (voltage or current) control signal or I2C communications link and trigger alarms based on temperature or fan fail (Hall Effect) signal. # chmod +x /scripts/dell_ipmi_fan_control.Control Resources offers off-the-shelf fan & motor control and alarm products for 2, 3, and 4-wire fans that operate at 12, 24, and 48 VDC, as well as, a DC brush motor drive for high-voltage (up to 280 VDC) motors. # echo '*/2 * * * * /bin/bash /scripts/dell_ipmi_fan_control.sh > /tmp/cron.log' > mycron You may have to adjust the time frame depending on your server usage. I wrote a small script, that will check the servers temperature periodically (crontab) and disables or enables the dynamic fan control based on a temperature threshold. Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x02 0xff 0圆4 Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x02 0xff 0x1e Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x02 0xff 0x14 Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x02 0xff 0x00 Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x01 0x01 Ipmitool -I lanplus -H -U -P raw 0x30 0x30 0x01 0x00 Ipmitool -I lanplus -H -U -P sdr get 'FAN 1 RPM' 'FAN 2 RPM' 'FAN 3 RPM' Ipmitool -I lanplus -H -U -P sensor reading 'Ambient Temp' 'FAN 1 RPM' 'FAN 2 RPM' 'FAN 3 RPM' Although you might have to change the sensors' names accordingly. So basically a 11th, 12th and 13th generation PowerEdge. I tested them with my R210II, T620 and T330. These are already widely known, but I wanted to list them again. I read threads on this sub and other boards and found a lot of commands. I did some research on how to manually controlling the PowerEdge fans. There were some threads complaining about server noise in this sub the last days.

Dell fan speed control