check_mk local check for smart on freeebsd (from elsewhere, limited functionality, better than none)

smart_freebsd

#!/usr/local/bin/bash
# https://github.com/zmielna/smart_diskinfo
# Backblaze chaps have 40k disks and they care about SMART 187 mainly
# see https://www.backblaze.com/blog/hard-drive-smart-stats/
# This is Check_mk local check script for FreeBSD based NAS like NAS4FREE
# Drop a copy to /usr/lib/check_mk_agent/local/
# you can "telnet nas4free.domain.com 6556" from your OMD server to see if it works.
#
#    SMART 5 \u2013 Reallocated_Sector_Count.
#    SMART 187 \u2013 Reported_Uncorrectable_Errors.
#    SMART 188 \u2013 Command_Timeout.
#    SMART 197 \u2013 Current_Pending_Sector_Count.
#    SMART 198 \u2013 Offline_Uncorrectable.
# So we care mostly about 187 but if your disk doesn't return this value use 198 or other
#
# For linux change /dev/ada? to /dev/sd?


function get_smart() {
    unset SMARTDATA
    SMARTDATA=$( smartctl -a "${_disk}" )
    export SMARTDATA
}


function check_errors() {

    ERRORS=0
    if echo "${SMARTDATA}" | grep ^187 ; then
        ERRORS=$( echo "${SMARTDATA}" | grep ^187  | awk '{print $NF}' )
    fi

}

for _disk in $(ls /dev/da? /dev/da??) ; do

    get_smart ${_disk}
    check_errors ${_disk}

    if [[ "$ERRORS" -gt "0" ]] ; then
        echo "2 Disk_${_disk} Reported_Uncorrectable_Errors=$ERRORS;1;5 CRITICAL - Disk ${_disk} has $ERRORS Uncorrectable Errors Reported!"
    else
        echo "0 Disk_${_disk} Reported_Uncorrectable_Errors=$ERRORS;1;5 OK - Disk ${_disk} has $ERRORS Uncorrectable Errors Reported"
    fi
done