Difference between Amazon S3 and Amazon EBS on the Elastic Cloud
http://vehera.jsn-server7.com/LiddleBlog/?p=518
Amazon Elastic Block Storage (Amazon EBS) is a new type of storage designed specifically for Amazon EC2 instances. Amazon EBS allows you to create volumes that can be mounted as devices by EC2 instances. Amazon EBS volumes behave as if they were raw unformatted external hard drives and can be formatted using a file system such as ext3 (Linux) or NTFS (Windows) and mounted on an EC2 instance; files are accessed through the file system . They have user supplied device names and provide a block device interface.
