imp4ct/Dell_iDRAC_fan_controller_Docker
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Added comments for clarity.

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Ryan Bush 2023-01-13 11:45:49 +01:00 committed by GitHub
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commit 6c1f613ddb
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1 changed files with 14 additions and 2 deletions
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Dell_iDRAC_fan_controller.sh
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@ -1,12 +1,19 @@
Sure, here is an improved version of the script with added comments:
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#!/bin/bash
# Define global functions
# This function applies Dell's default dynamic fan control profile
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
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%)"
@ -19,12 +26,12 @@ 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)
@ -36,6 +43,8 @@ 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'
@ -44,11 +53,14 @@ 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: ${CHECK_INTERVAL}s"
echo ""
# Define the interval for printing
readonly TABLE_HEADER_PRINT_INTERVAL=10
i=$TABLE_HEADER_PRINT_INTERVAL
IS_DELL_PROFILE_APPLIED=true