In March 2026, Amazon ECS Managed Instances introduced support for EC2 instance store volumes as an alternative to Amazon EBS for container data volumes. This addition aims to reduce storage costs and improve I/O performance for latency-sensitive applications by using local instance storage where available and enabled.
Users can configure this option by selecting EC2 instance types with instance store volumes through custom capacity providers. If local storage is disabled or unavailable, Amazon ECS defaults to provisioning EBS volumes. This support is rolled out across all commercial AWS regions offering ECS Managed Instances, offering broader flexibility in storage choices for container-based workloads.
Source & further reading
Amazon ECS Managed Instances now supports Amazon EC2 instance store ↗Source published 2026-03-31. 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.