179 lines
5.1 KiB
Bash
Executable File
179 lines
5.1 KiB
Bash
Executable File
#!/bin/sh
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# NOTE: Must be run as root, so you probably need to setup sudo for this.
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# Vars {{{
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debug="0"
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## Colors {{{
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c_redb='\033[1;31m'
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c_magentab='\033[1;35m'
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c_reset='\033[0m'
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## }}}
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# }}}
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# Functions
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## Test if a disk really support SMART {{{
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## Smartctl can give an health status even without a full support
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## of SMART for some type (eg. scsi or megaraid).
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## Exemple : SMART support is: Unavailable - device lacks SMART capability.
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is_disk_support_smart() {
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_disk="${1}"
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_type="${2}"
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_smarctl_support_result="/tmp/dsupport.$(basename "${_disk}")"
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smart_support_msg=""
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[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : is_disk_support_smart func − check if SMART is supported on : ${_disk}."
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## Create or empty previous file
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true > "${_smarctl_support_result}"
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## Grep only "support" lines from disk's informations
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smartctl -d "${_type}" -i -- "${_disk}" | grep -E "^SMART support is:" -- >> "${_smarctl_support_result}"
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## If the file is not empty
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if test -s "${_smarctl_support_result}"; then
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## Parse all "support" lines
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while IFS= read -r _LINE; do
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if ! printf -- '%s' "${_LINE}" | grep -q -E -- "(Enabled|Available)"
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then
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smart_support_msg="${_LINE}"
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fi
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done < "${_smarctl_support_result}"
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else
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smart_support_msg="smartctl was not able to open ${_disk} DEVICE with ${_type} TYPE."
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fi
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if [ -z "${smart_support_msg}" ]; then
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[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : is_disk_support_smart func − SMART seems fully supported on : ${_disk} with ${_type} type."
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else
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[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : is_disk_support_smart func − SMART is not fully supported on : ${_disk} with ${_type} type. See smartctl informations :\n${smart_support_msg}"
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fi
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rm -f -- "${_smarctl_support_result}"
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}
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## }}}
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## Test the type of disk with smartctl {{{
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## Cause the scanned one might not be the one to use
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choose_correct_type() {
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_disk="${1}"
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_scanned_type="${2}"
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_default_type="auto"
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TYPE=""
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SMART_SUPPORT_MSG=""
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for test_type in "${_default_type}" "${_scanned_type}"; do
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is_disk_support_smart "${_disk}" "${test_type}"
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## If no message, the type is correct
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if [ -z "${smart_support_msg}" ]; then
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TYPE="${test_type}"
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SMART_SUPPORT_MSG=""
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return
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else
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SMART_SUPPORT_MSG="${smart_support_msg}"
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fi
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done
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}
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## }}}
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# Create or empty previous files
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true > /tmp/dres
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true > /tmp/dcheck
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true > /tmp/dscan
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# Get the list of all available devices
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smartctl --scan >> /tmp/dscan
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# If the file is not empty
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if test -s /tmp/dscan; then
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while IFS= read -r LINE; do
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## Get device path
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DISK=$(echo "${LINE}" | cut -d" " -f1)
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## Try to determine the best type
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SCANNED_TYPE=$(echo "${LINE}" | cut -d" " -f3)
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choose_correct_type "${DISK}" "${SCANNED_TYPE}"
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## If no correct type was found for this device
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if [ -z "${TYPE}" ]; then
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[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : SMART is not fully supported."
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DRES=$(printf '%s' "SMART Health Status can't be determine because of:\n${SMART_SUPPORT_MSG}")
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DCODE="2"
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TYPE="unsupported"
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### Still try to display informations about unsupported device (eg. RAID controller,…)
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DID="unsupported-${DISK}"
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DINFO=$(smartctl -i -d "${SCANNED_TYPE}" "${DISK}" | grep -v -E "^smartctl|^Copyright|^$" || printf '%s' "Can't get informations due to no SMART support.")
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else
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[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : SMART seems fully supported, proceed normally."
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### Get SMART Health Status and return code
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DRES=$(/usr/sbin/smartctl -H -d "${TYPE}" -n standby "${DISK}")
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DCODE=$?
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DID=$(smartctl -i -d "${TYPE}" "${DISK}" | awk '/.erial .umber:/ { print $NF }')
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DINFO=$(smartctl -i -d "${TYPE}" "${DISK}" | grep -v -E "^smartctl|^Copyright|^$")
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fi
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## Test health status
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DSTBY=$(( DCODE & 2 ))
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DFAIL=$(( DCODE & 8 ))
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DWARN=$(( DCODE & 32 ))
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## According to health, give a weight to each color to easily get the page status
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if test $DSTBY -ne 0
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then
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COLOR="4&clear"
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elif test $DFAIL -ne 0
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then
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COLOR="1&red"
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elif test $DWARN -ne 0
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then
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COLOR="2&yellow"
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else
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COLOR="3&green"
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fi
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## Avoid duplicate device
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if ! grep -q "${DID}" /tmp/dres; then
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## For summary
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echo "${COLOR} $DISK ${TYPE}"
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## For detailed informations
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{
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echo "${COLOR} $DISK ${TYPE}" | cut -c2-
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echo ""
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echo "$DRES" | grep -v -E "^smartctl|^Copyright|^$|^==="
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echo "${DINFO}"
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echo "------------------------------------------------------------"
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echo ""
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echo ""
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} >> /tmp/dres
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fi
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done < /tmp/dscan >> /tmp/dcheck
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# If the file is empty
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else
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echo "1&red Error while scanning devices with smartctl" >> /tmp/dcheck
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fi
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# Set the global color according to the highest alert
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COLOR=$(< /tmp/dcheck awk '{print $1}' | sort | uniq | head -1 | cut -c3-)
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# Send informations to Xymon server
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$XYMON "${XYMSRV}" "status ${MACHINE}.smart ${COLOR} SMART health check
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$(< /tmp/dcheck cut -c2-)
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==================== Detailed status ====================
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$(cat /tmp/dres)
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"
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# Clean temp files
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rm -f -- /tmp/dres /tmp/dcheck /tmp/dscan
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exit 0
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