EBS for EC2

Amazon Ec2终于支持持久化数据了，取名叫EBS（Amazon Elastic Block Store），马上就去尝试，再补上使用心得

以下是收到的邮件全文：

[quote]
Dear AWS Developer,

We are pleased to announce the release of a significant new Amazon EC2 feature, Amazon Elastic Block Store (EBS), which provides persistent storage for your Amazon EC2 instances. With Amazon EBS, storage volumes can be programmatically created, attached to Amazon EC2 instances, and if even more durability is desired, can be backed with a snapshot to the Amazon Simple Storage Service (Amazon S3).

Prior to Amazon EBS, block storage within an Amazon EC2 instance was tied to the instance itself so that when the instance was terminated, the data within the instance was lost. Now with Amazon EBS, users can chose to allocate storage volumes that persist reliably and independently from Amazon EC2 instances. Amazon EBS volumes can be created in any size between 1 GB and 1 TB, and multiple volumes can be attached to a single instance. Additionally, for even more durable backups and an easy way to create new volumes, Amazon EBS provides the ability to create point-in-time, consistent snapshots of volumes that are then stored to Amazon S3.

Amazon EBS is well suited for databases, as well as many other applications that require running a file system or access to raw block-level storage. As Amazon EC2 instances are started and stopped, the information saved in your database or application is preserved in much the same way it is with traditional physical servers. Amazon EBS can be accessed through the latest Amazon EC2 APIs, and is now available in public beta.

For more information on Amazon EBS and detail on how to start using this feature, please see the resources listed below:

* Amazon EC2 Detail Page and Pricing
* Amazon EC2 Developers Guide
* Release Notes

We hope you enjoy this new feature and we look forward to your feedback.

Sincerely,

The Amazon EC2 team
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