#!/usr/bin/ksh
# Monitor status of LUNs on HP-UX
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk 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 in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# tails. You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.

# Put this file into /usr/lib/check_mk_agent/plugins. Then
# reinventorize your host.
# Actually querying these stats is quite slow since they freshly update
# on each call. If you have a few 1000 luns then this will not work.

get_stats()
{
    scsimgr get_stat -D $LUN | tr '\=' ':' | grep -e 'STATISTICS FOR LUN'  -e 'Bytes' -e 'Total I/Os processed' -e 'I/O failure' -e 'IO failures due
to'
    return $?
}


# Ex:
#LUN PATH INFORMATION FOR LUN : /dev/pt/pt2
#World Wide Identifier(WWID) =
#LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk5
#World Wide Identifier(WWID) = 0x60a98000572d44745634645076556357
#LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk6

get_lun_map()
{
scsimgr lun_map | egrep '^[[:space:]]*(LUN PATH|World Wide Identifier)' | tr '\=' ':'
}


main()
{
get_lun_map | while read line ; do
    descr=$(echo $line | awk -F: '{print $1}')
    val=$(  echo $line | awk -F: '{print $2}')
    case $descr in
      LUN*)
          if echo $val | grep /dev/rdisk 1>/dev/null; then
              DMP=yes
              LUN=$val
          else
              DMP=no
              unset LUN
          fi
      ;;
      World*)
          if [ $DMP = "yes" ]; then
              echo "WWID: $val"
              get_stats $LUN
          fi
      ;;
      *)
          echo "Fehler:"
          echo $line
          echo $descr
          echo $val
          sleep 1
      ;;
    esac
done
}



# Verify the system is using new multipath device model.
if [ -d /dev/rdisk ] && [ -d /dev/disk ]; then
    echo '<<<hpux_lunstats:sep(58)>>>'
    main
fi