Oracle Grid Infrastructure installation consists of installing Oracle Grid Infrastructure, which installs Oracle ASM on cluster nodes, configuring the Oracle ASM disk groups, and starting Oracle ASM instances. An Oracle ASM disk group is a collection of disk devices to store data files that Oracle ASM instances manage as a unit. Oracle ASM instances mount disk groups to make Oracle ASM files available to database instances.
When you run Oracle Universal Installer, you have the option to configure and install Oracle Grid Infrastructure and create Oracle ASM disk groups. For detailed information, see the Oracle Automatic Storage Management Administrator's Guide corresponding to the Oracle Grid Infrastructure version you are using.
For zone clusters, also ensure that the group/system/solaris-large-server package is installed.