The whole root zone model provides the maximum configurability. All of the required and any selected optional Solaris packages are installed into the private file systems of the zone. The advantages of this model include the capability for global administrators to customize their zones file system layout. This would be done, for example, to add arbitrary unbundled or third-party packages.
The disk requirements for this model are determined by the disk space used by the packages currently installed in the global zone.
If you create a sparse root zone that contains the following inherit-pkg-dir directories, you must remove these directories from the non-global zone's configuration before the zone is installed to have a whole root zone :