Munin contributed plugins

#!/bin/sh

#

# Monitor disk iostat on FreeBSD host.

#

# Parameters understood:

#

#       config   (required)

#       autoconf (optional - used by munin-config)

#

# Magic markers (optional - used by munin-config and installation

# scripts):

#

#%# family=auto

#%# capabilities=autoconf

PATH=/bin:/usr/bin

if [ "$1" = "autoconf" ]; then

  echo yes

  exit 0

fi

DISKS=`/usr/sbin/iostat -dIn9 | head -1`

if [ "$1" = "config" ]; then

  echo 'graph_title IOstat'

  echo 'graph_args --base 1024 -l 0'

  echo 'graph_vlabel Bytes per ${graph_period}'

  echo 'graph_category disk'

  echo 'graph_info This graph shows disk load on the machine.'

  for D in $DISKS

  do

    if echo $D | grep -vq '^pass'; then

      echo "$D.label $D"

      echo "$D.type DERIVE"

      echo "$D.min 0"

    fi

  done

  exit 0

fi

VALUES=`/usr/sbin/iostat -dIn9 | tail -1`

COL=3   # 3rd value for each disk is grabbed

for D in $DISKS

do

  if echo $D | grep -vq '^pass'; then

    echo -n "$D.value "

    VAL=`echo $VALUES | cut -d ' ' -f $COL`

    echo "$VAL 1048576 * p" | dc | cut -d '.' -f 1

  fi

  COL=$(($COL + 3))

done