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by ratzkewatzke 5057 days ago
They're not using tape storage. The ZDNet story confirms this: http://www.zdnet.com/amazon-launches-glacier-cloud-storage-h....

There are any number of reasons why deletes would be discouraged. One is packing: if your objects are "tarred" together in a compiled object, discouraging early deletes makes it more cost-effective to optimistically pack early.