The ModifyVolume API allows dynamic changes to volume size (up to 16,384 GiB), type, IOPS, and throughput on live WorkSpaces Core instances without downtime or volume detachment. This replaced prior requirements for instance rebuilds to effect storage changes.
The API offers idempotency token support to prevent duplicate modifications and integrates progress tracking through EC2 volume modification operations. It is available across all AWS Regions offering WorkSpaces Core Managed Instances.
Source & further reading
Amazon WorkSpaces Core Managed Instances now supports ModifyVolume API ↗Source published 2026-10-26. 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.