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Munin-Contrib/plugins/zfs/zpool_fragmentation
2021-12-13 14:40:48 +01:00

67 lines
1.5 KiB
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#!/bin/bash
#%# family=auto
: << EOF
=head1 NAME
zpool_fragmentation - Outputs the zpool fragmentation per zfs pool.
=head1 AUTHOR
Michael Grote
=head1 LICENSE
GPLv3 or later
SPDX-License-Identifier: GPL-3.0-or-later
=head1 MAGIC MARKERS
#%# family=auto
=cut
EOF
if [ "$1" = "autoconf" ]; then
if ! command -v zpool &> /dev/null; then
echo "no (zpool could not be found!)"
else
echo "yes"
fi
exit 0
fi
# lese alle pools, sed löscht die erste zeile
# entferne das %-zeichen
list=$(zpool list | sed 1d | tr -d %)
if [ "$1" = "config" ]; then
# https://superuser.com/questions/284187/bash-iterating-over-lines-in-a-variable
while read -r line; do
# setze label
echo "$line" | awk '{print $1".label " $1}'
# setze warn-limits
echo "$line" | awk '{print $1".warning " 50}'
echo "$line" | awk '{print $1".critical " 75}'
done <<< "$list"
# setze optionen
echo 'graph_title ZFS storage pool - fragmentation' # Titelzeile
echo 'graph_vlabel fragmentation in %' # Text links, hochkant
echo 'graph_category fs' # Kategorie
echo 'graph_info This graph shows the ZFS Pool fragmentation.' # Text über Tabelle/Infos
echo 'graph_args -l 0 --upper-limit 100' # wertebegrenzer 0-100
exit 0
fi
# lese jede Zeile der Variable $list
# tue für jede Zeile
# "echo" die Zeile, wende awk drauf, Spalte $1/$7
while read -r line; do
# gebe wert aus
# <name>.value <wert>
echo "$line" | awk '{print $1".value " $7}'
done <<< "$list"
exit 0