Multiregion operation

By using CICS® multiregion operation (MRO), CICS systems that are running in the same MVS™ image, or in the same MVS sysplex, can communicate with each other.

Intercommunication facilities available using MRO
Multiregion operation (MRO) allows CICS systems that are running in the same MVS image or in the same MVS sysplex to communicate with each other. MRO does not support communication between a CICS system and a non-CICS system, such as IMS.
Cross-system multiregion operation (XCF/MRO)
The cross-system coupling facility (XCF) is part of the MVS base control program, providing high-performance communication links between MVS images that are linked in a sysplex (systems complex) by channel-to-channel links, channels, or coupling facility links.
Applications of multiregion operation
Multiregion operation provides an environment for a number of typical applications.
Conversion from a single-region system
Usually, you can convert existing single-region CICS systems to multiregion CICS systems with little or no reprogramming.

Parent topic: Getting started with intercommunication

Last updated: Friday, 18 December 2020 08:52