EC2 Volumes

An EC2 EBS Volume provides persistent, high-performance, and high-availability block-level storage which you can attach to a running EC2 instance (in the same availability zone).  Each volume (1GB - 1TB) can be formatted and mounted as a file system or used as a normal block device for storage (similar to a thumb drive in a computer).  An EBS Volume can only be attached to a single instance at a time. Attach EBS Volumes to instances at run-time or boot-time. Take EBS Snapshots of a volume at a particular point in time and then create multiple volumes from a snapshot and place them into any zone. You can also see the lineage of a volume/snapshot to see when it was created, as well as any parent/child relationships.