DUSPMVS

The architecture of DUSPMVS is centered around its z/OS environment, designed for batch processing. The main components include the DUSPMVS execution module, configuration files, and JCL scripts. The DUSPMVS execution module is the core component responsible for processing the restoration tasks.

It interacts with the z/OS operating system to read the backup data, write the restored data, and manage system resources. Configuration files store settings such as dataset mappings, security parameters, and operational preferences. These files are typically text-based and can be edited to customize the tool's behavior.

JCL scripts are used to submit and control the execution of DUSPMVS jobs. They define the input datasets, output datasets, and the commands to be executed. Communication between components occurs through the z/OS operating system's services.

The DUSPMVS module reads data from the backup datasets, which are typically stored on DASD or tape. The restored data is written to target datasets, which can be sequential files, VSAM datasets, or PDS. DUSPMVS uses RACF for authentication and access control, ensuring that only authorized users can perform data restoration tasks.

The tool integrates with z/OS logging and auditing facilities, providing a detailed audit trail of all operations. DUSPMVS does not expose any APIs. Compared to other solutions, DUSPMVS focuses on restoring MAXBACK backups, providing a specialized solution for this specific migration need.