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.