The data repository
The single-system image of a CICS system or group of CICS systems is provided by the CMAS using the CICSPlex SM and resource definitions held on the data repository.
Each CMAS has its own data repository. The data repository is a VSAM KSDS that is created using a CICSPlex SM post-installation job. As with all data sets, you need to take regular backups of each data repository in your environment. Details of creating and managing a data repository are in CICS Transaction Server for z/OS Installation Guide.
- Using WUI views; see The CICSPlex SM Web User Interface.
- Using the EYU9XDBT CICSPlex SM definition utility.
- Using the batched repository-update facility (BATCHREP); see The batched repository-update facility.
- Using the API; see CICSPlex System Manager Application Programming Guide and CICSPlex System Manager Application Programming Reference.
You can generate a visual map of the definitions in your data repository. The map can be of business application services, resource monitoring, real-time analysis, or workload monitoring. You select a starting point for the map, which might be for example, a CICS system group or an individual resource, from a WUI detail or tabular view. CICSPlex SM displays the starting point and all the definitions that either refer to that definition or are referred to by it. See How to map CICSPlex SM definitions for guidance on using the map function.