CA ShareOption/5

The architecture of CA ShareOption/5 is centered around the ShareOption Control Region, which acts as the central point of control. The Data Sharing Manager handles concurrent access to VSAM files. The Journaling Facility captures all data changes to a journal dataset, enabling point-in-time recovery.

The Recovery Manager utilizes the journal for data restoration. Communication between components is primarily internal, using z/OS services and shared memory. The Control Region manages resource allocation and coordinates data sharing operations.

The Journaling Facility writes data changes to a dedicated journal dataset. The Recovery Manager uses the journal to restore data to a consistent state. Key configuration parameters include journal dataset specifications, buffer pool sizes, and recovery settings.

Security is managed through z/OS security mechanisms, such as RACF, ensuring only authorized users and applications can access the shared VSAM files. Monitoring and logging are handled through system console messages and dedicated log datasets, providing comprehensive system status and error information. Backups and restores are performed using standard z/OS utilities, such as DFSMS, ensuring data integrity and availability.