An administrator is deploying an MQ topology, and is checking that their Cloud Pak (or...

In IBM Cloud Pak for Integration (CP4I), IBM MQ Native High Availability (NativeHA) is a feature that enables automated failover and redundancy by maintaining multiple replicas of an MQ queue manager.

When using NativeHA, licensing in CP4I is calculated based on the total number of VPCs (Virtual Processor Cores) consumed by all MQ instances, including both active and standby replicas.

IBM MQ NativeHA uses a multi-replica setup, meaning there are multiple queue manager instances running simultaneously for redundancy.

Licensing in CP4I is based on the total CPU consumption of all running MQ replicas, not just the active instance.

Therefore, the administrator must ensure that all HA replicas are accounted for in their license entitlement.

Why Option B is Correct:

A. No licenses, because only RDQM is supported on CP4I. (Incorrect)

IBM MQ NativeHA is fully supported on CP4I alongside RDQM (Replicated Data Queue Manager). NativeHA is actually preferred over RDQM in containerized OpenShift environments.

C. A different license from the standard CP4I license must be purchased from IBM to use the NativeHA feature. (Incorrect)

No separate license is required for NativeHA – it is covered under the CP4I licensing model.

D. The administrator can use their pool of CP4I licenses. (Incorrect)

Partially correct but incomplete – while the administrator can use their CP4I licenses, they must ensure that all HA replicas are included in the license calculation, not just the active instance.

Analysis of the Incorrect Options:

IBM MQ Native High Availability Licensing

IBM Cloud Pak for Integration Licensing Guide

IBM MQ on CP4I - Capacity Planning and Licensing

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References: