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Multi-Access Spool (MAS)

Previous sections describe how CA Spool functions in a single system that is operating under a single copy of the MVS control program. But it is also possible to operate from 2 to 32 such systems, as members of a Multi-Access Spool (MAS) configuration.

The operation of each system in the configuration is independent, and includes all functions that apply to a single CA Spool system.

Each CA Spool system can control the creation and maintenance of spool files, schedule output for print processing, and communicate with operators and communication-interface users. However, all spool and checkpoint data sets are shared by all systems in the configuration.