To make an application available on a platform, you install an application definition and enable the application. The CICS® bundles that are deployed as part of the application are created in the CICS regions.
When you install the application definition, CICSPlex SM creates an APPLCTN resource to represent the application in the CICSplex. CICSPlex SM also creates a record for the application in the data repository, which is used in recovery processing for the bundles for applications.
If the target platform is active, CICSPlex SM uses the information in the application bundle and the application binding to install the CICS bundles across the regions in the platform. Each BUNDLE resource is dynamically created and is given a unique name. The resources that are defined inside each CICS bundle are dynamically created in the CICS regions during the BUNDLE resource installation.
The relationship between the application and each installed CICS bundle is saved in a management part. The management part is a MGMTPART record that is created automatically for each CICS bundle during the application install process. It records the CICS regions where the bundle is installed, and tracks the status of the bundle in the CICS regions.
When you install an application in an active platform, CICSPlex SM installs the CICS bundles immediately in all the CICS regions that are defined as part of the platform, and available at the time when you install the application definition. CICSPlex SM also installs the CICS bundles in CICS regions in the platform if you start or restart the regions after the time when you install the application definition. If you add further CICS regions to the platform after the time when you install the application definition, CICSPlex SM installs the CICS bundles in those regions as well.
An application is initially installed in a disabled state. When you enable the application, CICSPlex SM enables the CICS bundles that were installed for the application in all the CICS regions, so that the application is available for use in all the CICS regions. If you start or restart a CICS region in the platform after the time when you enable the application, CICSPlex SM installs the bundles in that region in an enabled state.