LSI MegaRAID Monitor HOW-TO v2 for SuSe 9.1-9.3

15 Aug 2005

      Sorry for a repost. I didn't include some important parts for this
how-to.

First off get this package from LSI.
http://www.lsilogic.com/downloads/license.do?id=2000&did=7776&pid=2411

It is the driver package for SuSe 9.1. In that driver package is a
directory called Utilities/MegaMON. In MegaMON is a file named
lsi_v35.tgz. Do a tar -xzvf lsi_v35.tgz. This is the monitor app you
will need.

Then do a "./install -suse". This will install the binaries and install
the startup script of raidmon in /etc/init.d and set itself to start on
the runlevels 2,3,4,5. If the raidmon script does not get installed just
copy it to the /etc/init.d directory.

I have modified my raidmon file to include some other items. Below is
mine:

------------------------------------------------------------

#!/bin/sh
#
# chkconfig: 2345 20 80
# description: RAIDMon is a daemon that monitors the RAID subsystem
#               And generates e-mail to root
# processname: MegaServ.

# source function library
. /lib/lsb/init-functions

case "$1" in
  start)
        megadevice="megadev0"
        rm -f /dev/$megadevice 2>/dev/null
        megamajor=`cat /proc/devices|gawk '/megadev/{print$1}' `
        mknod /dev/$megadevice c $megamajor 0 2>/dev/null
        # New check: 10-31-01: Does node exist
        if [ ! -c /dev/$megadevice ]
        then
          echo "
                Character Device Node /dev/$megadevice does not exist.
                Raid Monitor could not be started
                "
          exit 1
        fi

        echo -n 'Starting RAID Monitor:'
        startproc /usr/sbin/MegaCtrl -start > /dev/null
        sleep 1 ; MegaCtrl -disMail
        touch /var/lock/subsys/raidmon
        MegaCtrl -enChkCon
        # check consistency on a Saturday at 01:00 very 4 weeks
        MegaCtrl -cons -h01 -w4 -d6
    echo
        ;;
  stop)
        echo -n 'Stopping RAID Monitor:'
        startproc /usr/sbin/MegaCtrl -stop
        megadevice="megadev0"
        rm -f /dev/$megadevice 2>/dev/null
        rm -f /var/lock/subsys/raidmon 2>/dev/null
    echo
        ;;
  restart|reload)
        $0 stop
        $0 start
        ;;
  *)
        echo "RAID Monitor is not Started/Stopped"
        echo "Usage: raidmon {start|stop|restart}"
        exit 1
esac

exit 0

-----------------------------------------------------------------------

Then just start the raidmon. "/etc/init.d/raidmon start". The above
changes tell my system to do a consistency check once a month at 1:00am.
This makes sure my RAID5 is working like it should.

Also note there will be a log file of /var/log/megaserv.log.

Next create this file "/usr/local/sbin/check_raid.sh" for checking the
logfile
for errors:

--- START SCRIPT ---

#!/bin/sh

# Simple RAID check script. Relies on consistency check run
by /etc/init.d/raidmon at
# 01:00 every day.
# This is then run by roots crontab at 04:30 everyday.

HOST=`hostname`
MAILTO="<your email>"

if grep -iq fail /var/log/megaserv.log
        then date | mail -s "$HOST has a RAID array problem" $MAILTO
fi

exit 0

--- END SCRIPT ---

Then setup a cron job to check the log file for errors every hour or
whatever time you want. I check every day at 4:30am. Some might want to
check more often.

As root do a "crontab -e". Then enter:

# Check for any reported RAID array errors
30 4 * * * /usr/local/sbin/check_raid.sh

I use this setup on about a dozen production machines. It works
perfectly. This will work on 32bit and 64bit machines.

Brad Dameron
Systems Administrator
SeaTab Software
www.seatab.com