samba4 samba zfs acls winbind ad dc zfsacl bind9

Hi, I'm struggling around for one week with a new Samba4 installation under FreeBSD with ZFS and I need really help - it's a "totally disaster". My Server has following settings/details: Hardware: i5, 64GB RAM, 4x4 TB server disks Storage: 4x4 TB via RAID Z2 (eff. 8 TB), zfs FreeBSD 10.3...