Configuring IBM MQ Native HA Cross-Region Replication (CRR) on Linux

Content

The purpose of this technote is to provide a detailed, step-by-step guide for configuring an IBM MQ Native High Availability (HA) Cross-Region Replication (CRR) environment on Linux across two geographically separated data centers.

This document specifically aims to:-

• Explain the architecture and design principles of IBM MQ Native HA with Cross-Region Replication.

• Describe how to configure two Native HA groups (Primary and Secondary) that together form a single highly available queue manager.

• Provide implementation steps for deploying a three-node Native HA group in each data center.

• Demonstrate how to enable secure replication between sites using TLS encryption.

• Show how to configure systemd-based monitoring to automatically detect and recover failed instances.

• Explain how to validate quorum, synchronization status, and replication health using IBM MQ administrative commands.

• Provide guidance on configuring and enabling a Recovery group for disaster recovery.

• Document the procedure for performing a planned role switchover between Live and Recovery groups.

• Help administrators understand expected system behavior during role transitions, including “Pending live” and “Pending recovery” states.

See attached PDF file:-

Configuring IBM MQ Native HA Cross-Region Replication (CRR) on Linux .pdf

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Author: Ganga Baby;

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