100 lines
2.7 KiB
Text
100 lines
2.7 KiB
Text
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#!/bin/bash
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#
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# Plugin to monitor ZFS Filesystems
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# Author: Adam Michel (elfurbe@furbism.com)
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# Description:
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# This is an extension of the zfs_fs plugin
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# modified as a multigraph to graph all zfs
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# filesystems it can find
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#
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# Tested on Ubuntu-14.04
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#
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# Parameters understood:
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#
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# config (required)
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# autoconf (optional - used by munin-config)
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#
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#%# family=auto
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. "$MUNIN_LIBDIR/plugins/plugin.sh"
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need_multigraph()
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if [ "$1" = "autoconf" ]; then
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# Makes little sense to autoconf if you can't suggest
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echo no
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exit 0
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fi
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if [ "$1" = "suggest" ]; then
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exit 0
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fi
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if [ "$1" = "config" ]; then
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for i in `zfs list -Hp | awk '{print $1}'`; do
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values=( $(zfs get -p usedbydataset,usedbychildren,usedbysnapshots,usedbyrefreservation,available,quota $i | awk 'BEGIN {total=0;} { if( NR==1 ) next; } !/quota/ {total=total+$3;} {print $3} END{print total;}') )
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fsname=$(clean_fieldname $(echo "$i" | sed 's/\//__/g'))
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echo <<EOF "multigraph zfs_list_$fsname
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graph_title $fsname usage
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graph_order usedbydataset usedbychildren usedbysnapshots usedbyrefreservation available total quota
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graph_args --base 1024 -r -l 0 --vertical-label Bytes --upper-limit ${values[6]}
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graph_info This graph shows how is used a zfs filesystems.
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graph_category fs
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graph_period second
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usedbydataset.label UsedByDataset
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usedbydataset.draw AREA
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usedbydataset.info Used space by Dataset
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usedbydataset.colour FF0000
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usedbychildren.label UsedByChildren
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usedbychildren.draw STACK
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usedbychildren.info Used space by children
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usedbychildren.colour FFCC33
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usedbysnapshots.label UsedBySnapshots
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usedbysnapshots.draw STACK
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usedbysnapshots.info Used space by snapshot
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usedbysnapshots.colour 0000FF
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usedbyrefreservation.label Usedbyrefreservation
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usedbyrefreservation.draw STACK
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usedbyrefreservation.info Used space by Ref Reservation
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usedbyrefreservation.colour 33CCFF
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available.label Available
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available.draw STACK
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available.info Free space
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available.colour 00FF00
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total.label Total
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total.draw LINE1
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total.info Total
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total.colour 000000
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quota.label Quota
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quota.draw LINE1
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quota.info Quota
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quota.colour 555555"
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EOF
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done
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exit 0
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fi
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for i in `zfs list -Hp | awk '{print $1}'`; do
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values=( $(zfs get -p usedbydataset,usedbychildren,usedbysnapshots,usedbyrefreservation,available,quota $i | awk 'BEGIN {total=0;} { if( NR==1 ) next; } !/quota/ {total=total+$3;} {print $3} END{print total;}') )
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fsname=$(clean_fieldname $(echo "$i" | sed 's/\//__/g'))
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if [ ${values[5]} = "-" ]; then
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quota=0
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else
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quota=${values[5]}
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fi
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echo <<EOF "multigraph zfs_list_$fsname
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usedbydataset.value ${values[0]}
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usedbysnapshots.value ${values[2]}
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usedbychildren.value ${values[1]}
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usedbyrefreservation.value ${values[3]}
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available.value ${values[4]}
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total.value ${values[6]}
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quota.value $quota"
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EOF
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done
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exit 0
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