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caspar
a7e295eae1
The new iostat plugin automatically detects and graphs all disks. If you were using the iostat_ plugin, make sure to migrate to the new iostat plugin. iostat plugin written by job@ with tiny tweak from me. iostat plugin integrated into munin port by Olivier Cherrier. OK kirby@
133 lines
3.6 KiB
Bash
133 lines
3.6 KiB
Bash
#!/bin/sh
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# -*- sh -*-
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# Copyright (c) 2026 Job Snijders <job@bsd.nl>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# Munin multigraph plugin to monitor disk activity on OpenBSD systems.
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#
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# Magic markers:
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#
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#%# family=auto
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#%# capabilities=autoconf
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if [ "$1" = "autoconf" ]; then
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if [ -x /usr/sbin/iostat -a -x /sbin/sysctl ]; then
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echo yes
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exit 0
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else
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echo no
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exit 0
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fi
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fi
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DISKS=$(/sbin/sysctl -n hw.disknames \
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| /usr/bin/tr ',' '\n' | /usr/bin/grep -v ':$' | /usr/bin/cut -d: -f1)
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if [ "$1" = "config" ]; then
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echo 'multigraph iostat_throughput'
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echo 'graph_title Disk throughput per device'
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echo 'graph_args --base 1024'
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echo 'graph_vlabel Bytes/${graph_period}'
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echo 'graph_category disk'
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echo 'graph_info This graph shows averaged throughput in bytes per device.'
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echo ''
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for DISK in ${DISKS}; do
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echo "${DISK}_kb.label $DISK"
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echo "${DISK}_kb.cdef ${DISK}_kb,1024,*"
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echo "${DISK}_kb.type DERIVE"
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echo "${DISK}_kb.min 0"
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echo "${DISK}_kb.draw LINE1"
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echo ''
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done
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for DISK in ${DISKS}; do
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echo "multigraph iostat_throughput.${DISK}"
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echo "graph_title Disk throughput for ${DISK}"
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echo 'graph_args --base 1024'
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echo 'graph_category disk'
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echo 'graph_info This graph shows disk throughput in bytes.'
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echo ''
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echo 'kb.label Bytes'
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echo 'kb.cdef kb,1024,*'
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echo 'kb.type DERIVE'
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echo 'kb.min 0'
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echo 'kb.draw LINE1'
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echo ''
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done
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echo 'multigraph iostat_iops'
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echo 'graph_title Disk IOs per device'
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echo 'graph_vlabel IOs/${graph_period}'
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echo 'graph_args --base 1000'
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echo 'graph_category disk'
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echo 'graph_info This graph shows averaged IO operations per device.'
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echo ''
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for DISK in ${DISKS}; do
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echo "${DISK}_xfr.label ${DISK}"
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echo "${DISK}_xfr.type DERIVE"
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echo "${DISK}_xfr.min 0"
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echo "${DISK}_xfr.draw LINE1"
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echo ''
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done
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for DISK in ${DISKS}; do
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echo "multigraph iostat_iops.${DISK}"
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echo "graph_title Disk IOs for ${DISK}"
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echo 'graph_args --base 1000'
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echo 'graph_category disk'
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echo 'graph_info This graph shows the number of IOPS.'
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echo ''
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echo 'xfr.label IO/sec'
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echo 'xfr.type DERIVE'
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echo 'xfr.min 0'
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echo 'xfr.draw LINE1'
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echo ''
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done
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# TODO: implement tracking IO busy as a percentage.
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# To convert 'Seconds spent in disk activity' into a busy percentage, state
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# tracking via $MUNIN_PLUGSTATE or $MUNIN_STATEFILE should be implemented.
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# CDEF $cur,$prev,-,300,/,100,*
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exit 0
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fi
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echo 'multigraph iostat_throughput'
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for DISK in $DISKS; do
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echo -n "${DISK}_kb.value "
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/usr/sbin/iostat -ID "${DISK}" | tail -1 | /usr/bin/awk '{ print $1 }'
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done
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echo ''
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echo 'multigraph iostat_iops'
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for DISK in $DISKS; do
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echo -n "${DISK}_xfr.value "
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/usr/sbin/iostat -ID "${DISK}" | tail -1 | /usr/bin/awk '{ print $2 }'
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done
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echo ''
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for DISK in ${DISKS}; do
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/usr/sbin/iostat -ID "${DISK}" | tail -1 | /usr/bin/awk '
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{
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print "multigraph iostat_throughput.@DISK@";
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print "kb.value", $1;
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print "";
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print "multigraph iostat_iops.@DISK@";
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print "xfr.value", $2;
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print "";
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}' | /usr/bin/sed "s/@DISK@/${DISK}/"
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done
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