Check health of SAS drive using smartctl

check_smart_sas.sh

#!/bin/bash

#STATE_OK=0
#STATE_WARNING=1
#STATE_CRITICAL=2
#STATE_UNKNOWN=3
#STATE_DEPENDENT=4

STATUS_OK="OK"
STATUS_WARNING="WARNING"
STATUS_CRITICAL="CRITICAL"
STATUS_UNKNOWN="UNKNOWN"

if [ -z "$1" ] ; then
        echo "$STATUS_CRITICAL - Must specify device"
        exit 2
fi

TMP=$(mktemp)

smartctl -d scsi -H $1 > $TMP 2>&1
EXIT_STATUS=$?

if [ "$EXIT_STATUS" -ne "0" ] ; then
        echo "$STATUS_CRITICAL - smartctl $1: exit status: $EXIT_STATUS - $(cat $TMP | egrep '^SMART Health Status:' )"
        rm -f $TMP > /dev/null 2> /dev/null
        exit 2
fi

## Exit status == 0

if [ "$(cat $TMP | egrep '^SMART Health Status:' | cut -d : -f 2)" = " OK" ] ; then
        echo "$STATUS_OK - smartctl $1: OK"
        rm -f $TMP > /dev/null 2> /dev/null
        exit 0
else
        echo "$STATUS_CRITICAL - smartctl $1: exit status: $EXIT_STATUS - $(cat $TMP | egrep '^SMART Health Status:' )"
        rm -f $TMP > /dev/null 2> /dev/null
        exit 2
fi