Add a function to test SMART support on a disk

This commit is contained in:
Jeremy Gardais 2020-02-19 18:32:30 +01:00
parent cbf0d8afb0
commit 26d6b06c86
Signed by: jegardai
GPG Key ID: E759BAA22501AF32
1 changed files with 51 additions and 0 deletions

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@ -2,6 +2,55 @@
# NOTE: Must be run as root, so you probably need to setup sudo for this. # NOTE: Must be run as root, so you probably need to setup sudo for this.
# Vars {{{
debug="0"
## Colors {{{
c_redb='\033[1;31m'
c_magentab='\033[1;35m'
c_reset='\033[0m'
## }}}
# }}}
# Functions
## Test if a disk really support SMART {{{
## Smartctl can give an health status even without a full support
## of SMART for some type (eg. scsi or megaraid).
## Exemple: SMART support is: Unavailable - device lacks SMART capability.
is_disk_support_smart() {
_disk="${1}"
_type="${2}"
_smarctl_support_result="/tmp/dsupport.$(basename "${_disk}")"
smart_support_msg=""
[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG: is_disk_support_smart func check if SMART is supported on: ${_disk}."
if test -f "${_smarctl_support_result}"; then rm -f "${_smarctl_support_result}"; fi
## Get only "support" lines from disk's informations
smartctl -d "${_type}" -i -- "${_disk}" | grep -E "^SMART support is:" -- > "${_smarctl_support_result}"
## Parse all "support" lines
while IFS= read -r _LINE; do
if ! printf -- '%s' "${_LINE}" | grep -q -E -- "(Enabled|Available)"
then
smart_support_msg="${_LINE}"
fi
done < "${_smarctl_support_result}"
if [ -z "${smart_support_msg}" ]; then
[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG: is_disk_support_smart func SMART seems fully supported on: ${_disk}."
else
[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG: is_disk_support_smart func SMART is not fully supported on: ${_disk}. See smartctl informations:\n${smart_support_msg}"
fi
rm -f -- "${_smarctl_support_result}"
}
## }}}
if test -f /tmp/dres; then rm -f /tmp/dres; fi if test -f /tmp/dres; then rm -f /tmp/dres; fi
if test -f /tmp/dscan; then rm -f /tmp/dscan; fi if test -f /tmp/dscan; then rm -f /tmp/dscan; fi
@ -13,6 +62,8 @@ while IFS= read -r LINE; do
DISK=$(echo "${LINE}" | cut -d" " -f1) DISK=$(echo "${LINE}" | cut -d" " -f1)
TYPE=$(echo "${LINE}" | cut -d" " -f3) TYPE=$(echo "${LINE}" | cut -d" " -f3)
is_disk_support_smart "${DISK}" "${TYPE}"
## Get SMART Health Status and return code ## Get SMART Health Status and return code
DRES=$(/usr/sbin/smartctl -H -d "${TYPE}" -n standby "${DISK}") DRES=$(/usr/sbin/smartctl -H -d "${TYPE}" -n standby "${DISK}")
DCODE=$? DCODE=$?