Physical name of the device.
Map containing EBS information, if the device is EBS based. Unlike most object attributes, these are accessed directly (e.g., ebs.volume_size or ebs["volume_size"]) rather than accessed through the first element of a list (e.g., ebs[0].volume_size).
ebs.volume_size
ebs["volume_size"]
ebs[0].volume_size
Suppresses the specified device included in the block device mapping of the AMI.
Virtual device name (for instance stores).