#!/bin/bash
#
#    KISS: Keep It Simple, Stupid!
#
#    Just a fast md5sum check on /proc/mdstat to see
#    if something changed in this quite important file
#
#    Initialize this script feeding the file with the sum when
#    the RAID is really UP:
#    md5sum /proc/mdstat > /root/scripts/data/mdstat_checksum
#    and then call it hourly with cron
#    If something is wrong you will recive a mail hourly until you
#    fix the problem
#
#
#    Do anything you like with this but DO NOT call me for ANY problem
#    :-)
#
#    pit at asashi a dot net site
#
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.

#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.

#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software Foundation,
#    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.


if md5sum -c /root/scripts/data/mdstat_checksum &> /dev/null
        then
        exit 0
else
        echo "Message from root@example.com"
        echo "md5sum check on /proc/mdstat FAILED!"
        echo "software raid @ host.example.com may be down"
        echo "Check it NOW please!"
exit 1
fi
#
# vim:tabstop=3:expandtab:shiftwidth=3:textwidth=80:autoindent
#