A modular computer storage system and method is provided for managing and directing data archiving functions. A client component is associated with one or more client devices for generating archival request. A file processor directs one or more storage devices, through one or more media components, which control the actual physical level backup on various storage devices. Each media component creates a library indexing system for locating stored data. A management component coordinates the archival functions between the various client components and the file processor, including setting scheduling policies, aging policies, index pruning policies, drive cleaning policies, configuration information, and keeping track of running and waiting jobs. The management component also keeps the scheduling information for a timetable of backups of the client devices and allocates storage space. The modular computer storage system may also work in conjunction with a Storage Area Network.