diff --git a/zfsync.sh b/zfsync.sh
index 5147404..8bbcd9d 100755
--- a/zfsync.sh
+++ b/zfsync.sh
@@ -2,7 +2,7 @@
 
 # zfsync: sync zfs pool(s) between two servers
 
-# before first use, or in case of failure, unexpected reboot while syncing, etc.:
+# in case of failure, unexpected reboot while syncing, etc.:
 #
 # launch "zfsync.sh init"
 #
@@ -13,9 +13,6 @@
 # - for i in ftp web mail; do zfs send servers/$i/home@newsync | ssh ${bro} zfs receive -vFd servers ;done
 # - for i in ftp web mail; do zfs rename servers/$i/home@newsync servers/$i/home@prevsync ;done
 # - ssh ${bro} 'for i in ftp web mail; do zfs rename servers/$i/home@newsync servers/$i/home@prevsync ;done'
-#
-# once init is done, call it using crontab:
-# */10    *       *       *       *       root    nice -n 19 /usr/local/bin/zfsync.sh >/tmp/zfsync.log
 
 
 bro="small"
@@ -29,6 +26,7 @@ LOCKFILE=/tmp/zfsync.lock
 ZROOT=zdata/servers
 sync_success=1
 
+echo "`date`: ZFSync starting."
 if [ -e $LOCKFILE ]
 then
 	echo "ERROR: $0 is already running with pid `cat $LOCKFILE`, check $LOCKFILE"
@@ -46,38 +44,38 @@ if [ $1 ]
 then
 if [ $1 = "init" ]
 then
-echo "`date`: ZFSync INIT starting."
 	echo "wiping previous syncs"
 	for snapshot in `zfs list -t snapshot -o name | grep -e prevsync -e newsync`; do zfs destroy $snapshot ; done
 	ssh -q ${bro} 'for snapshot in `zfs list -t snapshot -o name | grep -e prevsync -e newsync`; do zfs destroy $snapshot ; done'
 	echo "making full snapshots"
 	for jail in $pools; do zfs snapshot $ZROOT/$jail/home@newsync;done
 	echo "sending full snapshots"
-	for jail in $pools; do zfs send $ZROOT/$jail/home@newsync | ssh -q ${bro} 'zfs receive -vFd zdata' ;done
+	for jail in $pools; do zfs send $ZROOT/$jail/home@newsync | ssh -q ${bro} 'zfs receive -vFdu zdata' ;done
 	echo "renaming them to use them as a base for diff snapshots"
 	for jail in $pools; do zfs rename $ZROOT/$jail/home@newsync $ZROOT/$jail/home@prevsync ;done
 	ssh -q ${bro} 'for jail in ftp mail web; do zfs rename zdata/servers/$jail/home@newsync zdata/servers/$jail/home@prevsync ;done'
-echo "`date`: ZFSync INIT ending."
 	exit $?
 fi
 fi
 
-echo "`date`: ZFSync starting."
 for pool in $pools
 do
 	dataset="$ZROOT/${pool}/home"
 	echo "making new snapshot for ${pool}"
 	zfs snapshot ${dataset}@newsync || alert
 	echo "sending snapshot"
-	zfs send -i @prevsync ${dataset}@newsync | ssh -q ${bro} "zfs receive -vFd zdata" || alert
+        ssh -q ${bro} "zfs set readonly=on ${dataset}" || alert
+        sleep 2
+	zfs send -i @prevsync ${dataset}@newsync | ssh -q ${bro} "zfs receive -vFdu zdata" || alert
+        ssh -q ${bro} "zfs set readonly=off ${dataset}" || alert
 	echo "cleaning"
 	zfs destroy ${dataset}@prevsync || alert
 	zfs rename ${dataset}@newsync ${dataset}@prevsync || alert
 	ssh -q ${bro} "zfs destroy ${dataset}@prevsync && zfs rename ${dataset}@newsync ${dataset}@prevsync" || alert
 done
-echo "`date`: ZFSync ending."
 
 echo
 echo "${HOSTNAME};;${SERVICENAME};;0;OK - ZFS Sync succeeded at `date`" | ${SENDNSCA} >/dev/null
 
 rm -f $LOCKFILE
+echo "`date`: ZFSync ending."