You can install Oracle Solaris software from a local DVD-ROM or from a network installation server by using the Automated Installer (AI) installation method. In addition, Oracle Solaris Cluster software provides a custom method for installing both the Oracle Solaris OS and Oracle Solaris Cluster software by using the AI installation method. During AI installation of Oracle Solaris software, you choose to either install the OS with defaults accepted or run an interactive installation of the OS where you can customize the installation for components such as the boot disk and the ZFS root pool. If you are installing several cluster nodes, consider a network installation.
See How to Install and Configure Oracle Solaris and Oracle Solaris Cluster Software (IPS Repositories) for details about the scinstall AI installation method. See your Oracle Solaris installation documentation for details about standard Oracle Solaris installation methods and what configuration choices you must make during installation of the OS.