Changes such as write operations on a replication source comprising a hierarchically-indexed file system and associated data store are tracked and aggregated over a point-in-time image replication interval and communicated to a replication target. The replication target receives the changes, conducts...http://www.google.com.tw/patents/US7984016?utm_source=gb-gplus-share專利 US7984016 - Method for asynchronous replication of a hierarchically-indexed data store
