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A Single-Instance Galaxy Configuration  



A single-instance Galaxy is a system without a Galaxy console. Galaxy configuration data, which is normally provided by console firmware, is instead created in a file. By setting the system parameter GALAXY to 1, SYSBOOT reads the file into memory and the system boots as a single-instance Galaxy, complete with shared memory, Galaxy system services, and even self-migration of CPUs. This can be done on any Alpha platform, except for the ES45.

Single-instance Galaxy configurations run on everything from laptops to mainframes. This capability allows early adopters to evaluate OpenVMS Galaxy features, and most importantly, to develop and test Galaxy-aware applications without incurring the expense of setting up a full-scale Galaxy platform.

Because the single-instance Galaxy is not an emulator--it is real Galaxy code--applications run on multiple-instance configurations.

For more information about running a single-instance Galaxy, see Using a Single-Instance Galaxy on an Alpha System.


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