Editing ZFSSnapshotBackup-rpool

A script to backup the rpool image. I am not sure how the restore would work, but probably just fine, but you would need an installed functional machine to restore the rpool/ROOT. <pre> #!/bin/bash # Create a weekly full backup with nightly increments from previous weeks full backup. # Remove incremental backups from last week. # # See if there is an full backup for this week TODAY=$(/opt/csw/bin/gdate +'%Y-W%U-%u') OLDBACKUP=$(/opt/csw/bin/gdate +'%Y-W%U-%u' -d"-3 weeks") LASTFULL=$(/opt/csw/bin/gdate +'%Y-W%U-%u' -d"last saturday") SATURDAY=$(/opt/csw/bin/gdate +'%Y-W%U-%u' -d"this saturday") echo "************************************************************************" echo "Today:" $TODAY echo "This Saturday:" $SATURDAY echo "Last Saturday:" $LASTFULL echo "************************************************************************" FILEDIR=/projects/zfs_backups cd $FILEDIR LASTFULLFILE=$FILEDIR/zfs_rpool_full.$LASTFULL SATURDAYFILE=$FILEDIR/zfs_rpool_full.$SATURDAY INCREMENTALFILE=$FILEDIR/zfs_incr_rpool.$TODAY FILESYSTEM=rpool echo "Last Full backup name:" $LASTFULLFILE echo echo "Last Saturdays full backup filename:" $LASTFULLFILE echo # If today = sat (%w = 6) then # snapshot (zfs snapshot) and then put it into a file (zfs send snapshot> filename). echo "Checking to see if this is Satuday" $SATURDAY echo { if [ "$TODAY" = "$SATURDAY" ] ; then echo "Its saturday, we are doing a full backup..." echo "Full zfs snapshot "$FILESYSTEM"@"$FILENAME echo zfs snapshot -r $FILESYSTEM@$SATURDAY zfs send -R $FILESYSTEM@SATURDAY > $SATURDAYFILE echo "Done doing a Satuday full backup." else echo "Its not Satuday..." echo echo "Does a full backup exist from last week?" echo { if [ -e "$LASTFULLFILE" ] ; then echo "Yes! A full backup exists." echo "Creating an incremental backup..." echo zfs snapshot -r $FILESYSTEM@$TODAY zfs send -R -i $FILESYSTEM@$LASTFULL $FILESYSTEM@$TODAY > $INCREMENTALFILE echo "Done doing an incremental backup" echo else echo "No Full backup exists. Creating a full backup..." echo zfs snapshot -r $FILESYSTEM@$LASTFULL zfs send -R $FILESYSTEM@$LASTFULL > $LASTFULLFILE echo "Done doing a full backup for last saturday (cause it doesn't exist)." echo fi } fi } # Next.. remove old incremental backup files. # Next.. remove old disk backups (keep 1 or 2 ?) </pre>

Summary:

This change is a minor edit.

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