When Elastic Disaster Recovery restores EBS volumes from snapshots, data loading occurs in the background, and uninitialized blocks can cause slower I/O until complete. By supporting a configurable EBS volume initialization rate in launch templates, DRS enables predictable acceleration to peak volume performance upon recovery.
This feature benefits I/O-intensive applications, such as databases, that require rapid and consistent storage throughput to meet recovery objectives. While the initialization rate is preserved during volume updates, DRS can complete recoveries without this setting if unsupported, preventing delays.
Source & further reading
AWS Elastic Disaster Recovery now supports Amazon EBS volume initialization rate ↗Source published 2026-07-14. 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.