OpenStack Swift is a cloud storage system that also happens to be one of the two founding OpenStack projects. Major public cloud providers like Rackspace, HP, and Softlayer use it, as do plenty of private cloud providers.
In this video, Project Technical Lead John Dickinson gives a rundown of how Swift is structured to serve large-scale data that requires high availability and high concurrency. It's set up in such a way that high throughput can be balanced with "cheap and deep" storage according to each customer's particular needs. Swift also introduces a feature called Regions, which treats globally distributed clusters as a single endpoint for maximum data durability and availability.
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