Your HDB environment is controlled by the Repository. The Repository is a VSAM KSDS that acts as a repository for all definitions associated with your HDB environment:
The Repository is also a repository for the following definitions that are not associated with HDBs:
It is recommended that you share the repository with other CICS PA users so that you only need to generate history data once, allowing multiple users to report against it. There is no limit to the number of repositories you can define.
If your repository is not cataloged, the dialog will first prompt you to define it when you select an option from the menu.