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ZFS/boojum-1week-snapshot.sh

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+#!/bin/bash
+
+# MODIFIED FOR MAC OSX
+# NOTE - THIS *ONLY* KEEPS SNAPSHOTS FOR (7) DAYS!!
+
+# =LLC= © (C)opyright 2016 Boojum Consulting LLC / Dave Bechtel, All rights reserved.
+## NOTICE: Only Boojum Consulting LLC personnel may use or redistribute this code,
+## Unless given explicit permission by the author - see http://www.boojumconsultingsa.com
+#
+# this runs from cron root - scheduled mon,wed,fri @ 11:45pm
+# and keeps 7 days of rotating snapshots
+# DISABLED plus 28-31 days of rotating snapshots, depending on days in month
+
+logfile=/var/root/boojum-1week-snapshot.log
+snaplog=/var/root/boojum-snaplist-all.log
+
+/bin/mv -vf $snaplog $snaplog-old
+
+PATH=/sbin:/var/root/bin:/var/root/bin/boojum:/usr/local/bin:/usr/local/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin: #/usr/NX/bin:/usr/games:
+echo "=== START RUN `date` - boojum 1-week +28-31 day snapshot" >> $logfile
+
+# speed things up a bit
+#/root/bin/boojum/spinup 2>&1 >> $logfile
+
+myday=`date +%a` # ex. Sun  
+mydnum=`date +%d` # ex. 04  
+
+#echo "= BEGIN Stage DF before, snaps before" >> $logfile
+echo "= BEGIN Stage 1: DF before" >> $logfile
+gdf -hT |grep /Volumes/z >> $logfile
+#zfs list -H -t snapshot |column -t >> $logfile
+
+  
+for i in `zpool list |grep -v ALLOC |awk '{ print $1 }'`;do
+  echo "= INFO $i:$myday:$mydnum" >> $logfile
+
+# kill ANY preexisting snapshot with this daylabel
+  echo "= BEGIN Stage 2: Destroy existing snaps for pool $i" >> $logfile
+
+  zfs destroy -R -v $i@$myday 2>&1 >>$logfile;rc=$?
+  echo "= DESTROY $i@$myday RTN CODE:$rc" >> $logfile
+
+  zfs destroy -R -v $i@boojumDOM$mydnum 2>&1 >>$logfile;rc=$?
+  echo "= DESTROY $i@boojumDOM$mydnum RTN CODE:$rc" >> $logfile
+
+#  zfs snapshot -r $i@boojumDOM$mydnum
+  zfs snapshot -r $i@$myday
+done
+
+echo "= BEGIN Stage 3: Today Snaps after, DF after" >> $logfile        
+
+#zfs list -H -t snapshot |grep $myday >> $logfile
+#zfs list -H -t snapshot |grep $mydnum >> $logfile
+
+# ALL snaps here
+#zfs list -H -t snapshot |column -t > $snaplog
+zfs-list-snaps--boojum.sh |column -t > $snaplog
+# Only today+wkly here
+zfs-list-snaps--boojum.sh |egrep "@$myday|DOM$mydnum|weekly" |column -t >> $logfile
+
+#df -h -T |grep zfs >> $logfile
+gdf -hT |grep /Volumes/z >> $logfile
+
+echo "=== END RUN boojum 1wk snapshot: `date`" >> $logfile 
+  
+# DONE while we're here, keep 28-31 day number backups too
+
+exit 0;
+
+2021.0227 osx fixed gdf
+
+2017.1228 switched make-snapshot order to have ex. "Wed" after DOM to avoid snapshot rollback "newer exists"
++ fixed df -h -T |grep zfs since others may not have zfs filesystems starting w/Z
+
+TODO log rotation 1/mo
+
+2017.1229 DONE zfs-list-snaps instead (shows creation date
+DONE save space in log - when listing snapshots, only list relevent-day
+DONE enumerated stages better (for searching