With this update, users can configure Elastic Block Store (EBS) disk size independently when deploying RabbitMQ brokers on Amazon MQ’s M7g cluster deployments. Storage size can be set in 5 GB increments between default and maximum permitted values, allowing tailoring of storage resources to workload demands without changing compute resources.
This flexibility aims to optimize cost and performance for messaging applications by right-sizing storage. The feature applies to RabbitMQ version 4.2 or later on M7g instances and is supported across all commercial AWS regions offering RabbitMQ. No external validation of performance benefits or cost impact was provided.
Source & further reading
Amazon MQ now supports configurable storage for RabbitMQ brokers ↗Source published 2026-07-15. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.