The question did not provide sufficient info. The minimum size is dependent on the drive type [Solid-State Drives (SSD) or Hard disk Drives (HDD)] and the volume type [General Purpose SSD, Provisioned IOPS SSD, Throughput Optimized HDD or Cold HDD] https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
The question did not provide sufficient info. The minimum size is dependent on the drive type [Solid-State Drives (SSD) or Hard disk Drives (HDD)] and the volume type [General Purpose SSD, Provisioned IOPS SSD, Throughput Optimized HDD or Cold HDD]
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html