Domains

A domain is the collection of server processes, supporting processes, and resource managers that enable the database connections required to fulfill application requests. You manage each domain with a separate configuration file, and you configure each application server domain to connect to a single database. A single application server machine can support multiple application server domains running on it. You configure an application server domain using the PSADMIN utility.

There can be a one-to-one or a many-to-one relationship between application server domains and a database. In the simplest case, you configure a single application server domain to connect to a single PeopleSoft database. In a more sophisticated environment, you may configure multiple application server domains, with each domain connecting to the same PeopleSoft database. The opposite is not valid; a single application server domain cannot be used to connect to multiple PeopleSoft databases.

For example, suppose you have installed three application databases. In this case, you must configure at least three application server domains, one for each database. As demand increases, you may need to configure multiple application server domains per database, for redundancy, fail-over, and performance reasons.

You can configure multiple application server domains under a single PeopleSoft configuration home directory, or PS_CFG_HOME. In this context, PS_CFG_HOME refers to the PeopleSoft high-level directory on the application server. PS_CFG_HOME is the directory to which you installed the PeopleSoft application server configuration files creating a domain.

PSADMIN creates a directory beneath PS_CFG_HOME\appserv for each application server domain that you configure. For example, suppose you create three domains: HCMDMO1, HCMDMO2, and HCMDMO3. In this case, PSADMIN creates subdirectories \HCMDMO1, \HCMDMO2, and \HCMDMO3 beneath the PS_CFG_HOME\appserv directory.