Dynamo is not an alternative to S3, Amazon’s publicly-available data storage service, or competing Web hosting/storage services like Nirvanix and Flexiscale (see previous post). There are no plans at this point to offer Dynamo as a Web Service. It is an internal-only project that sounds like a rethinking of what a relational database should be when computing scales to massive Web proportions (i.e., systems running on tens of thousands of computers).

As Nick Carr puts it:

At the start of the last century, the great engineering project was the creation of an electric grid that could deliver power to millions of users with a reliability and an efficiency that were previously unthinkable. Today’s great engineering project, of which Amazon’s Dynamo is but one manifestation, is to build a computing grid that can achieve similar breakthroughs in the processing and delivery of information.

The race to create a Web operating system is heating up. It is such a huge undertaking that there are only a few companies—Amazon, Google, Microsoft, Yahoo, IBM— that can tackle it. But this time around, it is unlikely that any one of them is going to own it outright.

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See our recent coverage of Nirvanix, a U.S. based S3 competitor as well.

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