CodeBase: Nagios Plugin > LSI Hardware RAID Controller – Underlying Physical Disk S.M.A.R.T Monitoring

A simple and efficient way of grabbing the smart health of a scalable amount of disks on an LSI Hardware RAID Controller, exiting to Nagios statuses.

We are providing the following code to be used as an information resource only. It is licensed under GNU GPL. Any use of, or development of the resources provided is strictly unsupported and VooServers Ltd will not be liable for any loss of or damage to business or personal assets.

#!/bin/bash
#
#Dave Byrne
#LSI Hardware RAID S.M.A.R.T Check
#

#Where is storcli?
storclibin="/opt/MegaRAID/storcli/storcli64"

#Check if storcli actually exists, echo and exit warning if it isnt
if ! [ -e "$storclibin" ]
then
  echo "WARNING - StorCli Not Found"
  exit 1
fi

#Get number of underlying physical disks from storcli
underlyingdisks=`$storclibin /c0 show|grep "Physical Drives"|awk '{ print $4}'`

#Loop to grab the smart health result from all physical disks
counter=0
while [ $counter -lt $underlyingdisks ]; do
  #echo counter at $counter
  smartctl -d sat+megaraid,$counter -a /dev/sda|grep "SMART overall-health self-assessment test result" >> /usr/results.txt
  let counter=counter+1
done

#Analyse results and start giving exit codes

if grep -q FAILED "/usr/results.txt";
then
    #failed string found, time to work out what disk it was
    line=`awk '/FAILED/{ print NR; exit }' /usr/results.txt`
    #subtract 1 from line number as disks start at 0
    let line=line-1
    diskinfo=`smartctl -d sat+megaraid,$line -a /dev/sda|grep -E 'Device Model|Serial Number'`
    printf "CRITICAL - Device ID #$line FAILURE ImminentnDISK INFO: n$diskinfo n"
    rm -f /usr/results.txt
    exit 2
else
    #failed string not found, echo and exit ok
    echo "OK - All array disks healthy"
    rm -f /usr/results.txt
    exit 0
fi

This plugin is also published in Nagios Exchange HERE

By Dave Byrne on February 6th, 2015