CA Accuchek

CA Accuchek is a dataset comparison utility designed to replace IBM's IEBCOMPR on z/OS and zVSE/VSEn platforms. It supports sequential, PDS, and VSAM datasets, providing a robust solution for identifying differences between files. This tool is essential for maintaining data integrity during data migrations, system upgrades, and routine audits.

From an architectural perspective, CA Accuchek integrates into existing mainframe environments, requiring z/OS or zVSE/VSEn infrastructure. The main components include the comparison engine, input/output modules for reading and writing datasets, and reporting modules for generating comparison reports. These components communicate through standard system calls and data access protocols.

The tool uses configuration files to define comparison parameters and options, specifying the datasets to be compared, the comparison criteria, and the output format. CA Accuchek leverages the security features of the z/OS and zVSE/VSEn platforms to control access to datasets. It supports authentication methods provided by the operating system and uses access control lists (ACLs) to define granular permissions.

Alternatives include other dataset comparison tools, but CA Accuchek is known for its efficiency and comprehensive feature set. Understanding the architectural components and integration points is crucial for effectively deploying and managing CA Accuchek in your environment.