db69c08c73
das_fanctl.sh reads drive temps via smartctl (falling back to the EMM backplane sensors), interpolates a fan percentage, and re-sends _shutup on a 5s keepalive so the shelf does not revert to full speed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
106 lines
3.6 KiB
Bash
Executable File
106 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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#
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# https://github.com/brezlord/iDRAC7_fan_control
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# Modified by Zeb Hering
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# A simple script to control fan speeds on Dell generation 12 PowerEdge servers.
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# If the inlet temperature is above $TEMP_THRESHOLD C enable iDRAC dynamic control and exit program.
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# If inlet temp is below $TEMP_THRESHOLD C set fan control to manual and set fan speed to predetermined value.
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# The tower servers T320, T420 & T620 inlet temperature sensor is after the HDDs so temperature will
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# be higher than the ambient temperature.
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# Variables
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IDRAC_IP="10.1.1.251"
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IDRAC_USER="root"
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IDRAC_PASSWORD="*^b#!efRhE8qULqUCa4U"
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# Fan speed in %
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SPEED0="0x00"
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SPEED5="0x05"
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SPEED10="0x0a"
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SPEED15="0x0f"
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SPEED20="0x14"
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SPEED25="0x19"
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SPEED30="0x1e"
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SPEED35="0x23"
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TEMP_THRESHOLD="65" # iDRAC dynamic control enable threshold
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TEMP_SENSOR="0Eh" # CPU 1 Temp
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TEMP_SENSOR="0Fh" # CPU 2 Temp
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SENSOR_NAME="Sensor"
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if [ "$TEMP_SENSOR" == "04h" ]
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then
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SENSOR_NAME="Inlet"
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elif [ "$TEMP_SENSOR" == "01h" ]
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then
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SENSOR_NAME="Exhaust"
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elif [ "$TEMP_SENSOR" == "0Eh" ]
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then
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SENSOR_NAME="CPU1"
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elif [ "$TEMP_SENSOR" == "0Fh" ]
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then
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SENSOR_NAME="CPU2"
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fi
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# Get system date & time.
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DATE=$(date +%d-%m-%Y\ %H:%M:%S)
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echo "Date $DATE"
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# Get temperature from iDRAC for CPU1 and CPU2.
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T_CPU1=$(ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD sdr type temperature | grep "0Eh" | cut -d"|" -f5 | cut -d" " -f2)
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T_CPU2=$(ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD sdr type temperature | grep "0Fh" | cut -d"|" -f5 | cut -d" " -f2)
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echo "--> iDRAC IP Address: $IDRAC_IP"
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echo "--> Current CPU1 Temp: $T_CPU1"
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echo "--> Current CPU2 Temp: $T_CPU2"
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# Compare the temperatures of CPU1 and CPU2 and set $T to the hotter one.
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if [ $(echo "$T_CPU1 > $T_CPU2" | bc) -eq 1 ]; then
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T=$T_CPU1
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SENSOR_NAME="CPU1"
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else
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T=$T_CPU2
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SENSOR_NAME="CPU2"
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fi
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echo "--> Hottest Sensor: $SENSOR_NAME - Temp: $T"
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# If ambient temperature is above $TEMP_THRESHOLD C enable dynamic control and exit, if below set manual control.
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if [[ $T > $TEMP_THRESHOLD ]]
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then
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echo "--> Temperature is above Dynamic Threshold - $TEMP_THRESHOLD C"
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echo "--> Enabled dynamic fan control"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x01 0x01
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exit 1
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else
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echo "--> Temperature is below Dynamic Threshold - $TEMP_THRESHOLD C"
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echo "--> Disabled dynamic fan control"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x01 0x00
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fi
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# Set fan speed dependant on ambient temperature if inlet temperaturte is below $TEMP_THRESHOLD C.
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# If inlet temperature between 0 and 30deg C then set fans to 10%.
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if [ "$T" -ge 0 ] && [ "$T" -le 30 ]
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then
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echo "--> Setting fan speed to 10%"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x02 0xff $SPEED10
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# If inlet temperature between 35 and 40deg C then set fans to 15%
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elif [ "$T" -ge 35 ] && [ "$T" -le 40 ]
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then
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echo "--> Setting fan speed to 15%"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x02 0xff $SPEED15
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# If inlet temperature between 40 and 50deg C then set fans to 20%
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elif [ "$T" -ge 40 ] && [ "$T" -le 50 ]
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then
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echo "--> Setting fan speed to 20%"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x02 0xff $SPEED20
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# If inlet temperature between 55 and $TEMP_THRESHOLD C then set fans to 25%
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elif [ "$T" -ge 51 ] && [ "$T" -le $TEMP_THRESHOLD ]
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then
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echo "--> Setting fan speed to 25%"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x02 0xff $SPEED25
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fi
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