- have some dirs

plugins/zfs/zfs-filesystem-graph

@@ -0,0 +1,87 @@
+#!/usr/local/bin/bash
+#
+# Plugin to monitor a ZFS Filesystem
+#
+# Wildcard-plugin to monitor a zfs filesystems. 
+#
+# To monitor a filesystem, link zfs_fs_<zpool>_<filesystem> to this file. E.g.
+#
+#    ln -s /usr/share/munin/node/plugins-auto/zfs_fs_ /etc/munin/node.d/zfs_fs_tank_foo
+# 
+# ...will monitor tank/foo fs.
+#
+# You can monitor zpool as well by a link on zfs_fs_<zpool>
+#
+# Parameters understood:
+#
+# 	config   (required)
+# 	autoconf (optional - used by munin-config)
+# 
+# ** WARNING **
+# For now this plugin does not allow "_" in the name of a zpool or filesystems
+#
+
+myname=`basename $0 | sed 's/^zfs_fs_//g' | sed -e 's/_/\//g'`
+
+if [ "$1" = "autoconf" ]; then
+    # Makes little sense to autoconf if you can't suggest
+    echo no
+    exit 0
+fi
+
+if [ "$1" = "suggest" ]; then
+	exit 0
+fi
+
+values=( $(zfs get -p usedbydataset,usedbychildren,usedbysnapshots,usedbyrefreservation,available,quota $myname | awk 'BEGIN {total=0;} { if( NR==1 ) next; } !/quota/ {total=total+$3;} {print $3} END{print total;}') )
+
+if [ "$1" = "config" ]; then
+
+	echo <<EOF "graph_title zfs $myname
+graph_order usedbydataset usedbychildren usedbysnapshots usedbyrefreservation available total quota
+graph_args --base 1024 -r -l 0 --vertical-label Bytes --upper-limit ${values[6]}
+graph_info This graph shows how is used a zfs filesystems.
+graph_category Zfs
+graph_period second
+usedbydataset.label UsedByDataset
+usedbydataset.draw AREA
+usedbydataset.info Used space by Dataset
+usedbydataset.colour FF0000
+usedbychildren.label UsedByChildren
+usedbychildren.draw STACK
+usedbychildren.info Used space by children
+usedbychildren.colour FFCC33
+usedbysnapshots.label UsedBySnapshots
+usedbysnapshots.draw STACK
+usedbysnapshots.info Used space by snapshot
+usedbysnapshots.colour 0000FF
+usedbyrefreservation.label Usedbyrefreservation
+usedbyrefreservation.draw STACK
+usedbyrefreservation.info Used space by Ref Reservation
+usedbyrefreservation.colour 33CCFF
+available.label Available
+available.draw STACK
+available.info Free space
+available.colour 00FF00
+total.label Total
+total.draw LINE1
+total.info Total
+total.colour 000000
+quota.label Quota
+quota.draw LINE1
+quota.info Quota
+quota.colour 555555"
+EOF
+	exit 0
+fi
+
+echo <<EOF "usedbydataset.value ${values[0]}
+usedbysnapshots.value ${values[2]}
+usedbychildren.value ${values[1]}
+usedbyrefreservation.value ${values[3]}
+available.value ${values[4]}
+total.value ${values[6]}
+quota.value ${values[5]}"
+EOF
+
+exit 0