[phamilton]

> What if DDB goes down

It's worth clarifying that question. What does "Go Down" mean? One region is down? Is it a bad software bug?

The database itself is fault tolerant. Nodes can go down all day without any real consequence. Each region is isolated, so a failure in one region won't affect other regions.

I guess I'm at a loss for the type of failure with DDB that would make it a SPOF, especially more than other datastores.

[dx034]

How do they structure regions? Is amazon.co.uk running on different regions than amazon.com? Or everything distributed globally?