diff --git a/ZFS/zfs-newds.sh b/ZFS/zfs-newds.sh
index 2c95b00..d78094c 100644
--- a/ZFS/zfs-newds.sh
+++ b/ZFS/zfs-newds.sh
@@ -1,39 +1,46 @@
 #!/bin/bash
 
-# =LLC= © (C)opyright 2017 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
-#
+# 2014 Dave Bechtel
 
-# cre8 a new ZFS dataset with options
-echo "$0 opt1=(1)compression opt1=(1)sharesmb, 0 == OFF zpool dirname"
+# cre8 a new ZFS dataset with options and loggit
+echo "$0 opt1=(1)compression opt2=(1)sharesmb, 0 == OFF zpool dirname"
+echo "Example: $0 11 zpoolname datasetname"
+echo "== create zpoolname/datasetname as Shared Samba dataset with recordsize 1M and set owner"
 
 # TODO -e /tmp/infile read it and process it
 
-source ~/bin/failexit.mrg
-logfile=/var/root/boojum-zfs-newds.log
+logfile=~/boojum-zfs-newds.log
 
-# TODO editme
+#source ~/bin/failexit.mrg
+# failexit.mrg
+function failexit () {
+  echo '! Something failed! Code: '"$1 $2" |tee -a $logfile # code # (and optional description)
+  exit $1
+}
+
+# xxx TODO editme
 #zp=zredpool2; myds=home/vmtmpdir/vmware-virtmachines
 zp="$2"; myds="$3"
 user=dave
-#user=nerdz
+# this is for chown later
 
 # defaults
-compr=lz4
-shrwin=off
+dcompr=lz4
+#dcompr=zstd-2  ## for zfs 2.0.x
+dshrwin=off
 
 # opt1=compression, opt2=sharesmb
 case "$1" in
 	"10" )
 # use defaults
-		compr=lz4; shrwin=off
+		compr=$dcompr; shrwin=$dshrwin
     ;;
 	"11" )
-		compr=lz4; shrwin=on    
+		compr=$dcompr; shrwin="on -o xattr=sa"
+# NOTE xattr=sa may not work in older versions of freebsd		
     ;;
 	"01" )
-		compr=off; shrwin=on
+		compr=off; shrwin="on -o xattr=sa"
     ;;
 	"00" )
 		compr=off; shrwin=off
@@ -50,25 +57,18 @@ esac
 # trace on
 (set -x
 zfs create -o \
-  atime=off -o compression=$compr -o sharesmb=$shrwin -o recordsize=1024k \
+  atime=off -o compression=$compr -o sharesmb=${shrwin} -o recordsize=1024k \
   $zp/$myds || failexit 99 "! Failed to create ZFS $zp/$myds"
 ) 
 
-echo "`date` + $zp/$myds + compr=$compr:shr=$shrwin + owner:$user" >> $logfile
+echo "$(date) + $zp/$myds + compr=$compr:shr=${shrwin} + Owner:$user" >> $logfile
 
 # NOTE does not take into account alt.mountpoints like /home!
 chown -v $user /$zp/$myds; ls -al /$zp/$myds
 #df -h /$zp/$myds
-df -h |head -n 1
-df -h |grep $myds
+df -hT |head -n 1
+df -hT |grep $myds
 
 exit;
 
-# MAC mods
-/var/root/bin/boojum/zfs-newds.sh: line 57: /root/boojum-zfs-newds.log: No such file or directory
-chown: /zwdgreentera/dvnotshrcompr: No such file or directory
-ls: /zwdgreentera/dvnotshrcompr: No such file or directory
-Filesystem                              Size   Used  Avail Capacity   iused     ifree %iused  Mounted on
-zwdgreentera/dvnotshrcompr             449Gi  324Ki  449Gi     1%        10 942667768    0%   /Volumes/zwdgreentera/dvnotshrcompr
- 40 root ~ # pwd
-/var/root
+This is not intended to be comprehensive, but should provide a good example