Solaris zone workload sharing technology
Solaris Zones (zones), a fully realized solution for server consolidation projects in a commercial UNIX operating system. By creating virtualized application execution environments within a single instance of the operating system, the facility strikes a unique balance between competing requirements. Check this link which has much details on zone functionality and procedure: http://www.oracle.com/technetwork/server-storage/solaris/zones-lisa-149952.pdf