Syntax options: GALAXY SUPPORT IS ENABLED|GALAXY SUPPORT IS DISABLED Allows global memory to be shared in an OpenVMS Galaxy configuration. Galaxy support is disabled by default. OpenVMS Galaxy is a software architecture for the OpenVMS Alpha operating system that enables multiple instances of OpenVMS to execute cooperatively in a single computer. An instance refers to a copy of the OpenVMS Alpha operating system. As an extension of the existing OpenVMS cluster support within Oracle Rdb, Oracle Rdb provides support for databases opened on multiple instances (or nodes) within a Galaxy system to share data structures in memory. Within an Oracle Rdb Galaxy environment, all instances with an open database share: o Database root objects (for example, TSN blocks and SEQ blocks) o Global buffers (if enabled) o Row caches and Row Cache Server process (RCS) (if enabled)