HIERARCHICAL DATA ARCHIVING

摘要

Disclosed is a file versioning system and corresponding methods for its operation. The file versioning system allows making snapshots of the file system every time there is a modification to the file system or its items. The snapshots may be linked to their immediate predecessors. Some older snapshots may be discarded according to a “thinning out” process based on multiple criteria. The snapshots may be displayed to a user in a manner making it easy to select a desired version.