Method and apparatus for data comparisons

摘要

A method and apparatus for comparing a first set of data and a second set of data are disclosed. A subset of base data is compared to a subset of replicated data to determine discrepancies. These discrepancies are then used to modify the replicated set of data, and the replicated set of data thus becomes identical to the base set of data. Alternately, the base data is compared directly to the replicated data and differences between the base data and the replicated data are obtained. These differences are then used to modify the replicated data to become identical to the base data.