When you configure a split domain, you run the Informatica services installer each time you create a domain. When you create a domain, you configure the user authentication method and security protocol and create the domain configuration repository. You then create the required users and groups in the domain.
You can create the domains on one machine or on two different machines. If you create the domains on one machine, you must avoid possible port, node name, and directory conflicts.
When you install Informatica services, you specify the user authentication method and security protocol for the domain. Each domain can have a different user authentication method and different security protocol. However, it is easier to maintain the domains when the user authentication methods and security protocols are identical.
During installation, you create the domain configuration repository. You must create each domain configuration repository in a separate database schema with different user accounts. The repositories can be in the same database instance.
You might have to duplicate some users or groups across domain configuration repositories. For example, if a user creates PowerCenter mappings in the primary domain and uses Metadata Manager for data lineage in the secondary domain, the user must exist in the domain configuration repository in both domains.