Amazon EC2 Mac Instances now support hot attach and detach of EBS volumes

Starting today, customers can dynamically attach and detach Amazon Elastic Block Storage (EBS) volumes on their running Amazon EC2 Mac instances. Prior to today, customers attaching or detaching EBS volumes on EC2 Mac instances needed to reboot their instances for revised EBS configuration to be reflected within their macOS guest environments. Now with this capability, customers do not need to trigger an instance reboot and wait for it to complete when attaching or detaching EBS volumes on EC2 Mac instances.

Source:: Amazon AWS