diff --git a/Dell_iDRAC_fan_controller.sh b/Dell_iDRAC_fan_controller.sh index 159b5db..f2c8374 100644 --- a/Dell_iDRAC_fan_controller.sh +++ b/Dell_iDRAC_fan_controller.sh @@ -1,12 +1,16 @@ #!/bin/bash # Define global functions +# This function applies Dell's default dynamic fan control profile function apply_Dell_profile () { + # Use ipmitool to send the raw command to set fan control to Dell default ipmitool -I $LOGIN_STRING raw 0x30 0x30 0x01 0x01 > /dev/null CURRENT_FAN_CONTROL_PROFILE="Dell default dynamic fan control profile" } +# This function applies a user-specified static fan control profile function apply_user_profile () { + # Use ipmitool to send the raw command to set fan control to user-specified value ipmitool -I $LOGIN_STRING raw 0x30 0x30 0x01 0x00 > /dev/null ipmitool -I $LOGIN_STRING raw 0x30 0x30 0x02 0xff $HEXADECIMAL_FAN_SPEED > /dev/null CURRENT_FAN_CONTROL_PROFILE="User static fan control profile ($DECIMAL_FAN_SPEED%)" @@ -47,12 +51,12 @@ function gracefull_exit () { exit 0 } +# Trap the signals for container exit and run gracefull_exit function trap 'gracefull_exit' SIGQUIT SIGKILL SIGTERM # Prepare, format and define initial variables -#readonly DELL_FRESH_AIR_COMPLIANCE=45 - +# Check if FAN_SPEED variable is in hexadecimal format, if not convert it to hexadecimal if [[ $FAN_SPEED == 0x* ]] then DECIMAL_FAN_SPEED=$(printf '%d' $FAN_SPEED) @@ -64,6 +68,8 @@ fi # Log main informations given to the container echo "Idrac/IPMI host: $IDRAC_HOST" + +# Check if the Idrac host is set to 'local', and set the LOGIN_STRING accordingly if [[ $IDRAC_HOST == "local" ]] then LOGIN_STRING='open' @@ -72,21 +78,25 @@ else echo "Idrac/IPMI password: $IDRAC_PASSWORD" LOGIN_STRING="lanplus -H $IDRAC_HOST -U $IDRAC_USERNAME -P $IDRAC_PASSWORD" fi + +# Log the fan speed objective, CPU temperature threshold, and check interval echo "Fan speed objective: $DECIMAL_FAN_SPEED%" echo "CPU temperature treshold: $CPU_TEMPERATURE_TRESHOLD°C" echo "Check interval: ${CHECK_INTERVAL}s" echo "" -# Prepare required variables and constants +# Define the interval for printing readonly TABLE_HEADER_PRINT_INTERVAL=10 i=$TABLE_HEADER_PRINT_INTERVAL IS_DELL_PROFILE_APPLIED=true # Start monitoring while true; do + # Sleep for the specified interval before taking another reading sleep $CHECK_INTERVAL & SLEEP_PROCESS_PID=$! + # Retrieve sensor data using ipmitool DATA=$(ipmitool -I $LOGIN_STRING sdr type temperature | grep degrees) INLET_TEMPERATURE=$(echo "$DATA" | grep Inlet | grep -Po '\d{2}' | tail -1) EXHAUST_TEMPERATURE=$(echo "$DATA" | grep Exhaust | grep -Po '\d{2}' | tail -1) @@ -94,43 +104,46 @@ while true; do CPU1_TEMPERATURE=$(echo $CPU_DATA | awk '{print $1;}') CPU2_TEMPERATURE=$(echo $CPU_DATA | awk '{print $2;}') + # Define functions to check if CPU1 and CPU2 temperatures are above the threshold CPU1_OVERHEAT () { [ $CPU1_TEMPERATURE -gt $CPU_TEMPERATURE_TRESHOLD ]; } CPU2_OVERHEAT () { [ $CPU2_TEMPERATURE -gt $CPU_TEMPERATURE_TRESHOLD ]; } + # Initialize a variable to store comments COMMENT=" -" + # Check if CPU1 is overheating and apply Dell profile if true if CPU1_OVERHEAT then apply_Dell_profile - + # Set the flag to indicate that Dell profile is applied if ! $IS_DELL_PROFILE_APPLIED then IS_DELL_PROFILE_APPLIED=true - - if CPU2_OVERHEAT - then - COMMENT="CPU 1 and CPU 2 temperatures are too high. Dell default dynamic fan control profile applied." - else - COMMENT="CPU 1 temperature is too high. Dell default dynamic fan control profile applied." - fi fi - elif CPU2_OVERHEAT - then - apply_Dell_profile - if ! $IS_DELL_PROFILE_APPLIED + if CPU2_OVERHEAT then - IS_DELL_PROFILE_APPLIED=true - COMMENT="CPU 2 temperature is too high. Dell default dynamic fan control profile applied." + COMMENT="CPU 1 and CPU 2 temperatures are too high, Dell default dynamic fan control profile applied for safety" + else + COMMENT="CPU 1 temperature is too high, Dell default dynamic fan control profile applied for safety" fi else - apply_user_profile - - if $IS_DELL_PROFILE_APPLIED + # Check if CPU2 is overheating and apply Dell profile if true + if CPU2_OVERHEAT then - COMMENT="CPU temperature decreased and is now OK (<= $CPU_TEMPERATURE_TRESHOLD°C). User's fan control profile applied." - IS_DELL_PROFILE_APPLIED=false + apply_Dell_profile + if ! $IS_DELL_PROFILE_APPLIED + then + IS_DELL_PROFILE_APPLIED=true + fi + COMMENT="CPU 2 temperature is too high, Dell default dynamic fan control profile applied for safety" + else + # Check if user profile is applied and apply it if not + if $IS_DELL_PROFILE_APPLIED + then + apply_user_profile + IS_DELL_PROFILE_APPLIED=false + fi fi - fi # Enable or disable, depending on the user's choice, third-party PCIe card Dell default cooling response # No comment will be displayed on the change of this parameter since it is not related to the temperature of any device (CPU, GPU, etc...) but only to the settings made by the user when launching this Docker container @@ -142,16 +155,15 @@ while true; do enable_third_party_PCIe_card_Dell_default_cooling_response THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE_STATUS="Enabled" fi - - # Print temperatures array - if [ $i -ge $TABLE_HEADER_PRINT_INTERVAL ] + fi + # Print the results, including the current fan control profile and comment + if [ $i -eq $TABLE_HEADER_PRINT_INTERVAL ] then - echo " ------- Temperatures -------" - echo " Date & time Inlet CPU 1 CPU 2 Exhaust Active fan speed profile Third-party PCIe card Dell default cooling response Comment" + echo "Time CPU1 CPU2 Inlet Exhaust Fan Control Profile Third-party PCIe card Dell default cooling response Comment" i=0 fi - printf "%12s %3d°C %3d°C %3d°C %5d°C %40s %51s %s\n" "$(date +"%d-%m-%y %H:%M:%S")" $INLET_TEMPERATURE $CPU1_TEMPERATURE $CPU2_TEMPERATURE $EXHAUST_TEMPERATURE "$CURRENT_FAN_CONTROL_PROFILE" "$THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE_STATUS" "$COMMENT" - - ((i++)) + echo "$(date +%T) $CPU1_TEMPERATURE°C $CPU2_TEMPERATURE°C $INLET_TEMPERATURE°C $EXHAUST_TEMPERATURE°C $CURRENT_FAN_CONTROL_PROFILE $THIRD_PARTY_PCIE_CARD_DELL_DEFAULT_COOLING_RESPONSE_STATUS $COMMENT" + i=$(($i+1)) wait $SLEEP_PROCESS_PID done +