A complex of S/390 machines that run together

A set of MVS or z/OS systems that are communicating and cooperating with each other through certain multisystem hardware components and software services, such as CXRC, to process workloads. This term is derived from “system complex”.

Two or more locally interconnected MVS operating systems images.

A multiple OS/390-system environment that allows multiple-console support (MCS) consoles to receive console messages and send operator commands across systems.