A system and method for capturing a point-in-time image of a file system utilized within a data storage system employing logical volumes mapped across physical volumes. The point-in-time backup process begins with receipt of a file system backup request. In response to receiving the file system backup...http://www.google.co.uk/patents/US6829688?utm_source=gb-gplus-sharePatent US6829688 - File system backup in a logical volume management data storage environment