root / bin / zfs-snapshot @ 45
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#!/bin/bash |
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# $Id: zfs-snapshot 45 2013-10-09 13:18:57Z kreverch $ |
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function create_snapshot_volume {
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#*** ETAPE DE CREATION DU SNAPSHOT ***# |
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echo "" |
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echo "*** Snapshot ZFS from : $NAME_VOL" |
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echo "*** ZFS Type : $TYPE_ZFS" |
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echo "" |
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echo "*** Snapshot Creation from $NAME_VOL" |
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ZDATE=$(date +%Y%m%d%H%M%S) |
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/sbin/zfs snapshot $NAME_VOL@snapshot-$ZDATE |
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echo "" |
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#*** FIN ETAPE DE CREATION DU SNAPSHOT ***# |
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} |
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function create_snapshot_filesystem {
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#*** ETAPE DE CREATION DU SNAPSHOT ***# |
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echo "" |
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echo "*** Snapshot ZFS from : $NAME_VOL" |
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echo "*** ZFS Type : $TYPE_ZFS" |
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echo "" |
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echo "*** Snapshot Creation from $NAME_VOL" |
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ZDATE=$(date +%Y%m%d%H%M%S) |
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/sbin/zfs snapshot $NAME_VOL@snapshot-$ZDATE |
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echo "" |
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#*** FIN ETAPE DE CREATION DU SNAPSHOT ***# |
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} |
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function del_old_snapshot {
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#*** ETAPE SUPPRESSION DES SNAPSHOTS OBSELETES ***# |
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echo "" |
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CPT_SNAP=$(/sbin/zfs list -t snapshot -r $NAME_VOL |cut -d" " -f1 |grep -i $NAME_VOL\@ |wc -l) |
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echo "*** Le nombre de snapshot pour $NAME_VOL est : $CPT_SNAP" |
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/sbin/zfs list -t snapshot -r $NAME_VOL |
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if [ $CPT_SNAP -gt $NB_SNAP ] |
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then |
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echo "*** Detection du snapshot le plus ancien" |
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for ID_SNAP_OLDER in $(/sbin/zfs list -t snapshot -r $NAME_VOL |cut -d" " -f1 |grep -i $NAME_VOL\@) |
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do |
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echo "*** Le snapshot le plus ancien est : $ID_SNAP_OLDER" |
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break |
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done |
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/sbin/zfs destroy $ID_SNAP_OLDER |
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if [ $? -eq 0 ] |
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then |
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echo "*** Suppression du snapshot $ID_SNAP_OLDER [OK]" |
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else |
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echo "/!\\ Suppression du snapshot $ID_SNAP_OLDER [ERROR]." 1>&2 |
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fi |
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fi |
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#*** FIN ETAPE SUPPRESSION DES SNAPSHOTS OBSELETES ***# |
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} |
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echo "**** $1" |
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if [ "$#" -eq 0 ] |
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then |
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echo "/!\\ File Configuration missing ... /!\\" 1>&2 |
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exit 1 |
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fi |
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if [ ! -f $1 ] |
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then |
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echo "/!\\ File Configuration does not exist /!\\" 1>&2 |
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exit 1 |
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fi |
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NAME_VOL=$(cat $1 |grep "name" |cut -d"=" -f2) |
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TYPE_ZFS=$(cat $1 |grep "type" |cut -d"=" -f2) |
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NB_SNAP=$(cat $1 |grep "nbsnapshots"|cut -d"=" -f2) |
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if [ "$NAME_VOL" = "" ] || [ "$TYPE_ZFS" = "" ] || [ "$NB_SNAP" = "" ] |
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then |
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echo "/!\\ Problem with the Configuration File : incoherence data or incomplete /!\\" 1>&2 |
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exit 1 |
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fi |
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if [ "$TYPE_ZFS" == "volume" ] |
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then |
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create_snapshot_volume |
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del_old_snapshot |
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else |
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if [ "$TYPE_ZFS" == "filesystem" ] |
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then |
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create_snapshot_filesystem |
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del_old_snapshot |
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fi |
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fi |