| 摘要 |
A file management system facilitates both physical and logical file groupings with convenient access to surplus media for sub-volume expansion. Each item of media includes a local file directory, which provides a list of files stored on the medium, cross-referenced to the files' addresses on the medium. The media items are organized as one or more primary sub-volumes, an auxiliary sub-volume, and a media reservoir. Each primary sub-volume preferably comprises a single sub-directory, and includes one or more media items used to store files of a specific class. Initially each primary sub-volume includes a single piece of media. The library also includes at least one auxiliary sub-volume, which may include multiple sub-directories, to store leftover files that do not fall under classes corresponding to the primary sub-volumes. Files may be stored on the auxiliary sub-volume on a random, "space available" basis. A media reservoir includes a bank of new, erased, or re-formatted media items available for individual inclusion into the primary and auxiliary sub-volumes as these sub-volumes expand.
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