Implementing Solaris Zones With Veritas Cluster Server by Symantec
With the release of Solaris 10, Sun introduced the concept of local zones. Zones are an isolation mechanism for applications in which an application is started within the confines of a zone. From an application view, the zone appears to be an independent system, where the application gets exclusive use of system resources, including processor and memory, as well as access to specific file systems without risk of stepping on other applications. From an implementation view, a local zone does not instantiate a separate operating system kernel as is done with virtual machines; instead zones operate as resource "Containers." Zones allow the system administrator to isolate an application and manage system resource allocation between applications running in other zones.