bpurcell.org - Amazon EC2 New Features: Elastic IP Addresses and Availability Zones
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September 1, 2008

If you had a chance to read my getting started with Ec2 article I highlighted some of the challenges with deploying applications on the cloud. One of these challenges can now be easily overcome based on a new feature recently provided on Ec2

Elastic IP Addresses:
Elastic IP Addresses are static IP addresses designed for dynamic cloud computing, and now make it easy to host web sites, web services and other online applications in Amazon EC2. Elastic IP addresses are associated with your AWS account, not with your instances, and can be programmatically mapped to any of your instances. This allows you to easily recover from instance and other failures while presenting your users with a static IP address.

Availability Zones:
Availability Zones give you the ability to easily and inexpensively operate a highly available internet application. Each Amazon EC2 Availability Zone is a distinct location that is engineered to be insulated from failures in other Availability Zones. Previously, only very large companies had the scale to be able to distribute an application across multiple locations, but now it is as easy as changing a parameter in an API call. You can choose to run your application across multiple Availability Zones to be prepared for unexpected events such as power failures or network connectivity issues, or you can place instances in the same Availability Zone to take advantage of free data transfer and the lowest latency communication.

Every new addition makes Ec2 more attractive. In the coming months I will be experimenting more with deploying a large scale application to the cloud and will post some of my findings.

Comments

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