mirror of
https://github.com/brezlord/iDRAC7_fan_control.git
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82 lines
3.0 KiB
Bash
82 lines
3.0 KiB
Bash
#!/bin/bash
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#
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# https://github.com/brezlord/iDRAC7_fan_control
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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 35deg C enable iDRAC dynamic control and exit program.
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# If inlet temp is below 35deg 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="IP address of iDRAC"
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IDRAC_USER="user"
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IDRAC_PASSWORD="passowrd"
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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="35" # iDRAC dynamic control enable thershold
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TEMP_SENSOR="04h" # Inlet Temp
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#TEMP_SENSOR="01h" # Exhaust Temp
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#TEMP_SENSOR="0Eh" # CPU 1 Temp
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#TEMP_SENSOR="0Fh" # CPU 2 Temp
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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 $DATE"
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# Get temperature from iDARC.
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T=$(ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD sdr type temperature | grep $TEMP_SENSOR | cut -d"|" -f5 | cut -d" " -f2)
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echo "--> iDRAC IP Address: $IDRAC_IP"
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echo "--> Current Inlet Temp: $T"
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# If ambient temperature is above 35deg C enable dynamic control and exit, if below set manual control.
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if [[ $T -ge $TEMP_THRESHOLD ]]
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then
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echo "--> Temperature is above 35deg 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 35deg C"
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echo "--> Disabled dynamic fan control"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x01 0x00
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fi
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# Set fan speed dependant on ambient temperature if inlet temperaturte is below 35deg C.
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# If inlet temperature between 1 and 14deg C then set fans to 10%.
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if [ "$T" -ge 1 ] && [ "$T" -le 14 ]
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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 $SPEED10
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# If inlet temperature between 15 and 19deg C then set fans to 15%
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elif [ "$T" -ge 15 ] && [ "$T" -le 19 ]
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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 $SPEED15
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# If inlet temperature between 20 and 24deg C then set fans to 20%
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elif [ "$T" -ge 20 ] && [ "$T" -le 24 ]
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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 $SPEED20
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# If inlet temperature between 25 and 29deg C then set fans to 25%
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elif [ "$T" -ge 25 ] && [ "$T" -le 29 ]
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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 $SPEED25
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# If inlet temperature between 30 and 35deg C then set fans to 30%
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elif [ "$T" -ge 30 ] && [ "$T" -le 34 ]
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then
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echo "--> Setting fan speed to 30%"
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ipmitool -I lanplus -H $IDRAC_IP -U $IDRAC_USER -P $IDRAC_PASSWORD raw 0x30 0x30 0x02 0xff $SPEED30
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fi
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