Techniques for reducing commit latency in a database system having a primary database system and a standby database system that is receiving a stream of redo data items from the primary. The standby sends an acknowledgment for a received item of redo data before the standby writes the redo data item...http://www.google.de/patents/US7599967?utm_source=gb-gplus-sharePatent US7599967 - No data loss system with reduced commit latency
