Amazon is adding persistent storage for users of its Elastic Compute Cloud. These volumes can be thought of as raw, unformatted disk drives which can be formatted and then used as desired (or even used as raw storage if you'd like), Amazon says.
Volumes can range in size from 1 GB on up to 1 TB; developers can create and attach several of them to each EC2 instance, Amazon says. They are designed for low latency, high throughput access from Amazon EC2. Needless to say, you can use these volumes to host a relational database.
Users also will also be able to perform "snapshot" backups of your volumes to Amazon Simple Storage Service, a feature that can be used to create new volumes or to roll back stored data to an earlier point in time.
"The snapshot is extremely powerful technology and allows for building highly fault-tolerant applications operating world-wide," says Werner Vogels, Amazon CTO. "Combine these snapshots with Availability Zones and Elastic IPs and you have all the tools to manage and migrate even the most complex of applications."
Both of the new innovations make it easier to envision use of cloud computing resources as the way to host Web-accessed applications for just about any sort of application, especially globally.