For use in a computer system, a data recovery system comprises an information producing unit for producing block-up information for data blocks which must be recovered to before images after occurrence of a system failure. Before such data blocks are recovered, other data blocks are either subjected...http://www.google.de/patents/US4815028?utm_source=gb-gplus-sharePatent US4815028 - Data recovery system capable of performing transaction processing in parallel with data recovery processing
