Volume Shadowing for OpenVMS

This document serves as a comprehensive guide for HP Volume Shadowing for OpenVMS. It introduces the technology, which acts as a RAID 1 implementation for duplicating data across multiple disk volumes to ensure continuous availability. The manual covers system configuration, parameter tuning (including those for minicopy and write bitmaps), and the use of DCL commands and system services for managing shadow sets. Additionally, it addresses system management tasks such as performing backups, managing crash dumps on shadowed systems, and handling disaster-tolerant configurations.