EC2 Auto Scaling adds ReplaceRootVolume for live root swaps
🔁 Amazon EC2 Auto Scaling introduces the ReplaceRootVolume strategy for instance refresh, allowing replacement of an instance's root Amazon EBS volume without stopping or terminating the instance. The feature preserves attachments and metadata (network interfaces, elastic IPs) and reduces operational complexity for OS-level updates, patching, and recovery from corrupted root volumes. It is particularly valuable for specialized instance types such as Mac and GPU instances and for stateful applications where data and attachments must be preserved. ReplaceRootVolume is available in select regions at no additional cost beyond standard EC2 and EBS usage.
