A method for backing up data in a computer system from a plurality of primary data sources to a secondary data source is provided. The method comprises copying data sections from the plurality of primary data sources to the secondary data source and providing a data pointer on the secondary data source....http://www.google.de/patents/US20030145180?utm_source=gb-gplus-sharePatent US20030145180 - Method and system for providing direct access recovery using seekable tape device
