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functions.sh
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# Define global functions
# This function applies Dell's default dynamic fan control profile
function apply_Dell_fan_control_profile() {
# Use ipmitool to send the raw command to set fan control to Dell default
ipmitool -I $IDRAC_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_fan_control_profile() {
# Use ipmitool to send the raw command to set fan control to user-specified value
ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x00 > /dev/null
ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x02 0xff $HEXADECIMAL_FAN_SPEED > /dev/null
CURRENT_FAN_CONTROL_PROFILE="User static fan control profile ($DECIMAL_FAN_SPEED%)"
}
# Convert first parameter given ($DECIMAL_NUMBER) to hexadecimal
# Usage : convert_decimal_value_to_hexadecimal $DECIMAL_NUMBER
# Returns : hexadecimal value of DECIMAL_NUMBER
function convert_decimal_value_to_hexadecimal() {
local -r DECIMAL_NUMBER=$1
local -r HEXADECIMAL_NUMBER=$(printf '0x%02x' $DECIMAL_NUMBER)
echo $HEXADECIMAL_NUMBER
}
# Convert first parameter given ($HEXADECIMAL_NUMBER) to decimal
# Usage : convert_hexadecimal_value_to_decimal "$HEXADECIMAL_NUMBER"
# Returns : decimal value of HEXADECIMAL_NUMBER
function convert_hexadecimal_value_to_decimal() {
local -r HEXADECIMAL_NUMBER=$1
local -r DECIMAL_NUMBER=$(printf '%d' $HEXADECIMAL_NUMBER)
echo $DECIMAL_NUMBER
}
# Retrieve temperature sensors data using ipmitool
# Usage : retrieve_temperatures $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
function retrieve_temperatures() {
if (( $# != 2 )); then
print_error "Illegal number of parameters.\nUsage: retrieve_temperatures \$IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT \$IS_CPU2_TEMPERATURE_SENSOR_PRESENT"
return 1
fi
local -r IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT=$1
local -r IS_CPU2_TEMPERATURE_SENSOR_PRESENT=$2
local -r DATA=$(ipmitool -I $IDRAC_LOGIN_STRING sdr type temperature | grep degrees)
# Parse CPU data
local -r CPU_DATA=$(echo "$DATA" | grep "3\." | grep -Po '\d{2}')
CPU1_TEMPERATURE=$(echo $CPU_DATA | awk "{print \$$CPU1_TEMPERATURE_INDEX;}")
if $IS_CPU2_TEMPERATURE_SENSOR_PRESENT; then
CPU2_TEMPERATURE=$(echo $CPU_DATA | awk "{print \$$CPU2_TEMPERATURE_INDEX;}")
else
CPU2_TEMPERATURE="-"
fi
# Parse inlet temperature data
INLET_TEMPERATURE=$(echo "$DATA" | grep Inlet | grep -Po '\d{2}' | tail -1)
# If exhaust temperature sensor is present, parse its temperature data
if $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT; then
EXHAUST_TEMPERATURE=$(echo "$DATA" | grep Exhaust | grep -Po '\d{2}' | tail -1)
else
EXHAUST_TEMPERATURE="-"
fi
}
# /!\ Use this function only for Gen 13 and older generation servers /!\
function enable_third_party_PCIe_card_Dell_default_cooling_response() {
# We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x00 0x00 0x00 > /dev/null
}
# /!\ Use this function only for Gen 13 and older generation servers /!\
function disable_third_party_PCIe_card_Dell_default_cooling_response() {
# We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x01 0x00 0x00 > /dev/null
}
# Returns :
# - 0 if third-party PCIe card Dell default cooling response is currently DISABLED
# - 1 if third-party PCIe card Dell default cooling response is currently ENABLED
# - 2 if the current status returned by ipmitool command output is unexpected
# function is_third_party_PCIe_card_Dell_default_cooling_response_disabled() {
# THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE=$(ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x01 0x16 0x05 0x00 0x00 0x00)
# if [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 01 00 00" ]; then
# return 0
# elif [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 00 00 00" ]; then
# return 1
# else
# print_error "Unexpected output: $THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE"
# return 2
# fi
# }
# Prepare traps in case of container exit
function graceful_exit() {
apply_Dell_fan_control_profile
# Reset third-party PCIe card cooling response to Dell default depending on the user's choice at startup
if ! $KEEP_THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE_STATE_ON_EXIT; then
enable_third_party_PCIe_card_Dell_default_cooling_response
fi
print_warning_and_exit "Container stopped, Dell default dynamic fan control profile applied for safety"
}
# Helps debugging when people are posting their output
function get_Dell_server_model() {
local -r IPMI_FRU_content=$(ipmitool -I $IDRAC_LOGIN_STRING fru 2>/dev/null) # FRU stands for "Field Replaceable Unit"
SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | grep "Product Manufacturer" | awk -F ': ' '{print $2}')
SERVER_MODEL=$(echo "$IPMI_FRU_content" | grep "Product Name" | awk -F ': ' '{print $2}')
# Check if SERVER_MANUFACTURER is empty, if yes, assign value based on "Board Mfg"
if [ -z "$SERVER_MANUFACTURER" ]; then
SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | tr -s ' ' | grep "Board Mfg :" | awk -F ': ' '{print $2}')
fi
# Check if SERVER_MODEL is empty, if yes, assign value based on "Board Product"
if [ -z "$SERVER_MODEL" ]; then
SERVER_MODEL=$(echo "$IPMI_FRU_content" | tr -s ' ' | grep "Board Product :" | awk -F ': ' '{print $2}')
fi
}
# Define functions to check if CPU 1 and CPU 2 temperatures are above the threshold
function CPU1_OVERHEATING() { [ $CPU1_TEMPERATURE -gt $CPU_TEMPERATURE_THRESHOLD ]; }
function CPU2_OVERHEATING() { [ $CPU2_TEMPERATURE -gt $CPU_TEMPERATURE_THRESHOLD ]; }
function print_error() {
local -r ERROR_MESSAGE="$1"
printf "/!\ Error /!\ %s." "$ERROR_MESSAGE" >&2
}
function print_error_and_exit() {
local -r ERROR_MESSAGE="$1"
print_error "$ERROR_MESSAGE"
printf " Exiting.\n" >&2
exit 1
}
function print_warning() {
local -r WARNING_MESSAGE="$1"
printf "/!\ Warning /!\ %s." "$WARNING_MESSAGE"
}
function print_warning_and_exit() {
local -r WARNING_MESSAGE="$1"
print_warning "$WARNING_MESSAGE"
printf " Exiting.\n"
exit 0
}