diff --git a/delete-cores.sh b/delete-cores.sh
new file mode 100755
index 0000000..6bb0663
--- /dev/null
+++ b/delete-cores.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/bash
+zfs list -H | grep "cores$" | grep -v "global" | awk '$2 ~ /G/ { print "find",$5,"-type f -delete"}' | /usr/bin/sh
diff --git a/zonebackuptofile.sh b/zonebackuptofile.sh
index e3a8e98..9595629 100755
--- a/zonebackuptofile.sh
+++ b/zonebackuptofile.sh
@@ -2,100 +2,163 @@
 
 usage()
 {
-    echo "Usage: $0 -z UUID -d days -r remote_folder -l local_folder -s server -t type" >&2
-    echo "ex: $0 -z bbba5ecb-5bda-47a5-e103-a6bfa368bf68 -d 1 -r remote_folder -l /zone/tools/nfsshare -s 192.168.5.243 -t nfs" >&2
+    echo "Usage: $0 [ -z UUID ] [ -h hostname ] [ -p port ] [ -k KEY ] [ -n name ] [ -d dir ]" >&2
     exit 1
 }
 
-while getopts "z:d:r:l:s:t:" opt;
+while getopts "z:h:p:k:n:d:" opt;
 do
     case "$opt" in
         z)
-	    UUID=$OPTARG
-	    ;;
+            UUID=$OPTARG
+            ;;
+        h)
+            HOSTNAME=$OPTARG
+            ;;
+        n)
+            NAME=$OPTARG
+            ;;
+        p)
+            PORT=$OPTARG
+            ;;
+        k)
+            KEY=$OPTARG
+            ;;
         d)
-        DAYS=$OPTARG
-        ;;
-        r)
-        RFOLDER=$OPTARG
-        ;;
-        l)
-        LFOLDER=$OPTARG
-        ;;
-        s)
-        SERVER=$OPTARG
-        ;;
-        t)
-        TYPE=$OPTARG
-        ;;
+            DIR=$OPTARG
+            ;;
+
+        \?)
+            echo "Error: Invalid Option: -${OPTARG}" >&2
+            usage
+            ;;
+        :)
+            echo "Error: -${OPTARG} requires an argument."
+            usage
+            ;;
         *)
-	    usage
-	    ;;
+            usage
+            ;;
     esac
 done
 
 shift $((OPTIND-1))
 
-if [ -z "${UUID}" || -z "${DAYS}" || -z "${RFOLDER}" || -z "${LFOLDER}" || -z "${SERVER}" && -z "${TYPE}" ]; then
+if [ -z "${UUID}" ] || [ -z "${HOSTNAME}" ] || [ -z ${PORT} ] || [ -z ${KEY} ] || [ -z "${NAME}" ] || [ -z "${DIR}" ]; then
     usage
 fi
 
-BRAND=`/usr/sbin/vmadm get $UUID | json brand | tr -d '\n'`
+SSH="ssh -i $KEY -p ${PORT} -o StrictHostKeyChecking=no"
+DSTDIR="${DIR}/${NAME}"
 
-mkdir -p $LFOLDER
+#################
+# functions
+#################
 
-if [ $TYPE = "nfs" ]; then
-    OVH="/export/ftpbackup/${RFOLDER}"
-    
-    mount $SERVER:$OVH $LFOLDER
+create_snap()
+{ 
+    DATASET=$1
+    echo "Creating snapshot of ${DATASET}..."
+    /usr/sbin/zfs snapshot zones/${DATASET}@`date +%Y%m%d`
+    check_err
+    echo "...done."
+}
 
-    if [ $? != 0 ]; then
-        echo "MOUNT FAILED."
-        umount $LFOLDER
-        exit
-    fi
-elif [ $TYPE = "smb" ]; then
-    mount -F smbfs //o6h.smartos5:c0c0l1s0@${SERVER}/${RFOLDER} $LFOLDER
+send_snap()
+{
+    DATASET=$1
+    echo "Sending snapshot of ${DATASET}..."
 
-    if [ $? != 0 ]; then
-        echo "MOUNT FAILED."
-        exit
+    # taking care for additional datasets
+    SLASH=`echo ${DATASET} | grep -c '/'`
+
+    if [ ${SLASH} -ne 0 ]; then
+        RENAME=`echo ${DATASET} |  sed 's/\//-/'`
+        /usr/sbin/zfs send zones/${DATASET}@`date +%Y%m%d` | ${SSH} ${HOSTNAME} "dd of=${DSTDIR}/${UUID}/${RENAME}.zfs bs=4M"
+    else
+        /usr/sbin/zfs send zones/${DATASET}@`date +%Y%m%d` | ${SSH} ${HOSTNAME} "dd of=${DSTDIR}/${DATASET}/${DATASET}.zfs bs=4M"
     fi
-fi
 
-mkdir -p $LFOLDER/$UUID
+    check_err
+    echo "...done."
+}
 
-if [ $? != 0 ]; then
-    echo "FAIL TO CREATE FOLDER $UUID."
-    umount $LFOLDER
-    exit
-fi
+check_snap()
+{
+    ZONE=$1
+    echo "Checking for snapshot of ${ZONE}..."
+    zfs list -t snapshot zones/${ZONE}@`date +%Y%m%d` 2>/dev/null 1>&2
+}
 
-# mantain backups of the last N days
-#find $LFOLDER/$UUID -type f -mtime +$DAYS -delete
+check_err()
+{
+    STATUS=$?
+    if [ ${STATUS} -ne 0 ]; then
+        echo "Unexpected error: ${STATUS}"
+        exit ${STATUS}
+    fi
+}
 
-snapshot()
+send_config()
 {
-    /usr/sbin/zfs snapshot zones/$1@`date +%Y%m%d`
-    /usr/sbin/zfs send zones/$1@`date +%Y%m%d` > $LFOLDER/$UUID/$1@`date +%Y%m%d` 
+    echo "Sending config to ${HOSTNAME}..."
+    zonecfg -z ${UUID} export | ${SSH} ${HOSTNAME} "dd of=${DSTDIR}/${UUID}/${UUID}.cfg"
+    check_err
+    echo "...done."
 }
 
-snapshot $UUID
+create_dir()
+{
+    echo "Creating directory at ${HOSTNAME}..."
+    ${SSH} ${HOSTNAME} mkdir -p ${DSTDIR}/${UUID}
+    check_err
+    echo "...done."
+}
 
-if [ $BRAND = "kvm" ]
-then 
-    snapshot ${UUID}-disk0
-elif [ $BRAND = "bhyve" ]
-then
-    snapshot ${UUID}/disk0
-fi
+check_multidataset()
+{
+    echo "Looking for addtional children datasets in ${UUID}..."
+    DATASET=`vmadm get ${UUID} | json datasets.0 | sed 's/zones\///' | tr -d '\n'`
+    echo "...done."
+
+    if [ ! -z "${DATASET}" ]; then
+        echo "Finded children dataset: ${DATASET}"
+        check_snap ${DATASET}
+
+        if [ $? -ne 0 ]; then
+            create_snap ${DATASET}
+        else
+            echo "Snapshot of ${DATASET} already available"
+            echo "Skipping create snapshot..."
+        fi
+    send_snap ${DATASET}
+    else
+        echo "No children datasets finded."
+    fi
+}
 
-/usr/sbin/zonecfg -z $UUID export > $LFOLDER/$UUID/$UUID.`date +%Y%m%d`.cfg
+#################
+# main
+#################
 
-if [ $TYPE = "nfs" ]; then
-    umount $LFOLDER
+echo "---
+BACKUP_SERVER: ${HOSTNAME}
+UUID to backup: ${UUID}
+---"
+
+create_dir ${UUID}
+
+check_snap ${UUID}
+
+if [ $? -ne 0 ]; then
+    create_snap ${UUID}
+else
+    echo "Snapshot of ${UUID} already available"
+    echo "...done."
 fi
 
-## TODO
-# smb: query for username
-# smb: query for password
+send_snap ${UUID}
+
+check_multidataset
+
+send_config