I was also looking for that, the only piece of info about that was: Unlike tape and other glacially slow equivalents, we have taken an approach that eliminates

I was also looking for that, the only piece of info about that was: Unlike tape and other glacially slow equivalents, we have taken an approach that eliminates the need for a separate retrieval process and provides immediate, low-latency access to your content. Access and management are performed via the same consistent set of APIs used by our other storage classes, with full integration into object lifecycle management so that you can tier cold objects down to optimize your total cost of ownership.