A method, system, apparatus, and computer-readable medium are described for the background movement of data between nodes in a storage cluster. According to one method, exception tables are generated that include data identifying the areas on each node that need to be migrated to another node and the...http://www.google.de/patents/US8010485?utm_source=gb-gplus-sharePatent US8010485 - Background movement of data between nodes in a storage cluster
