The Oracle Solaris Zones feature is a complete runtime environment for applications. A zone provides a virtual mapping from the application to the platform resources. Zones allow application components to be isolated from one another even though the zones share a single instance of the Oracle Solaris operating system. Zones use resource management components to control how applications use available system resources. For additional information on resource management features, see Administering Resource Management in Oracle Solaris 11.2 .
The zone establishes boundaries for resource consumption, such as CPU. These boundaries can be expanded to adapt to changing processing requirements of the application running in the zone.
For additional isolation, zones with a read-only root, called Immutable Zones, can be configured.