1. A process for allowing a content provider to control a replacement process operating at an edge server, comprising providing an edge server of a content delivery network that serves a plurality of content providers and having a data store for storing content associated with respective ones of the content providers, and allowing, via a central system for the content delivery network accessible to the plurality of contents providers, a content provider to set a replacement policy at the edge server for controlling the movement of content associated with the respective content provider, into and out of the data store, whereby the content provider has control over at least a portion of the data being maintained in the data store.