1. A method for managing data in a computer system, the method comprising: creating a backup data set comprising a plurality of data entries; harvesting a harvested data set from the backup data set, wherein said harvesting comprises determining and storing a logical relationship among the plurality of data entries of the backup data set; associating the harvested data set with the backup data set; storing the harvested data set and the backup data set on a backup medium; and creating and storing entries in a backup catalog which correspond to the harvested data set and the backup data set, said entries comprising a user-searchable view of contents of the harvested data set.