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There are all types of storage in AWS with a different use case for each. There are three different classifications of data stores: Object, File, and Block. Amazon EFS allows you to store files in S3 as if they were actually on your local network. S3 Glacier is very slow to get your files out of. Getting files (archives) out of an S3 glacier Vault can take between a minute and twelve hours depending on how much you want to pay for it.