Amazon Glacier now supports retrieval of specific ranges of your archives. You can initiate a job requesting Amazon Glacier to prepare an entire archive or a portion of the archive for subsequent download. When an archive is very large, you may find it cost effective to initiate several sequential jobs to prepare your archive.
For more information, see Downloading an Archive in Amazon Glacier in the Amazon Glacier Developer Guide.
For pricing information, go to the Amazon Glacier detail page.