Migrate files
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This function performs refreshment and replication operations. Refreshment is where a media instance, holding one or more AIPs or parts of AIPs, is replaced by a media instance of the same type by copying the bits on the medium used to hold AIPs and to manage and access the medium. As a result, the existing Archival Storage mapping infrastructure, without alteration, can continue to locate and access the AIP. In replication there is no change to the Packaging Information, the Content Information and the PDI. The bits used to convey these information objects are preserved in the transfer to the same or new media-type instance. Refreshment is also a Replication, but Replication may require changes to the Archival Storage mapping infrastructure.