RMS Journaling for OpenVMS

RMS Journaling for OpenVMS provides data integrity and protection for RMS files through three journaling methods: After-image (AI), Before-image (BI), and Recovery Unit (RU) journaling. The document details how these methods operate independently or in combination, their integration with DECdtm transaction services, and requirements for file maintenance and recovery. It includes sections on supported file organizations, necessary hardware, software licensing, and system configuration guidelines for high-availability OpenVMS environments.