Understanding PS_APP_HOME

PS_APP_HOME refers to the installation location for the PeopleSoft application software. In previous PeopleSoft releases, you installed PeopleTools into a high-level directory referred to as PS_HOME, and then you installed your PeopleSoft application into the existing PS_HOME location such that PeopleTools and your PeopleSoft application coexisted within the same directory structure. In the current release, this configuration is not supported. PS_APP_HOME must not be the same as PS_HOME.

The installation performed by the PeopleSoft Deployment Packages (DPKs) supports only separate PS_APP_HOME and PS_HOME. For information on the default installation locations for PS_HOME and PS_APP_HOME set by the DPKs, see the PeopleSoft PeopleTools Deployment Packages installation guide on the PeopleSoft PeopleTools Patches Home Page, My Oracle Support, Doc ID 2062712.2.

The separate PS_APP_HOME configuration includes the following benefits:

• PeopleTools patches and updates can be applied knowing that no application content has been disturbed. Likewise, PS_APP_HOME application updates can be applied independently.

• Increased flexibility and modularity in that a single PS_HOME can be associated with multiple PS_APP_HOME locations.

• Disk space savings, due to shared PS_HOME amongst multiple PS_APP_HOME locations. Using the traditional method, each application installation requires its own PeopleTools installation.

• When troubleshooting it will be easier to isolate application and PeopleTools issues.