When you plan the domain, you must consider the number of nodes needed in the domain, the types of application services that the domain requires, and the number of application services that run on each node. You must determine the database type and host name for the domain configuration repository and for the databases required by each application service. If you use Metadata Manager, you must also decide whether to create one domain or a split domain.

You must choose a keyword for the installer to use to generate the encryption key for the domain. Informatica uses the encryption key to encrypt sensitive data.

If you decide to configure SAML-based single sign-on (SSO) for the domain, you cannot configure the Kerberos authentication for the Informatica domain.

If you decide to configure security for the domain, you must know the location and password for the keystore and truststore files. If you decide to use Kerberos authentication for the Informatica domain, you must work with the Kerberos administrator to set up the user and service principals required by the domain.

As part of the planning process, you must also verify that each machine and database server in the domain meets the minimum system requirements.