Archival storage for digital libraries
Arturo Crespo, Héctor García-Molina · 1998
We propose an architecture for Digital Library Repositories that assures long-term archival storage of digital objects.The architecture is formed by a federation of independent but collaborating sites, each managing a collection of digital objects.The architecture is based on the following key components: use of signatures as object handles, no deletions of digital objects, functional layering of services, the presence of an awareness service in all layers, and use of disposable auxiliary structures.Long-term persistence of digital objects is achieved by creating replicas at several sites.