1. A system comprising: a near-line server coupled to one or more servers that include original data; and an information system coupled to the near-line server and configured to receive a copy of original data and delta data that includes information of changes to the original data, the information system configured to generate and maintain an updated version of the copy by applying the delta data to the copy as the delta data is received, the information system configured to dynamically transform the updated version from a first structure by organizing items of the data into a second structure that preserves the hierarchy of the first structure.