Manual Install Process › Pre-Installation Decisions for the CIA Real-Time Implementation › Select z/OS Image to Host CIA Repository

Select z/OS Image to Host CIA Repository

Select the z/OS image that hosts the CA Chorus CIA repository. Depending on your site, you can select DB2 or CA Datacom/AD.

The CA Chorus CIA repository reside in a CA Datacom/AD MUF or DB2 subsystem on a single z/OS image. This repository can contain the security information from multiple security databases across your enterprise. This repository is updated from any z/OS image where changes to that security database information can occur. CA Chorus accesses the security information in the CIA repository in servicing CA Chorus functionality.

Select a z/OS image with the following so that the updating and retrieval of the CIA repository information meets your CA Chorus performance criteria:

• licensing to run a CIA subsystem
• performance profile with sufficient resources