Patent ID: 7774315

Claim:
Backup system for backing up basic data elements accessible via a network, the backup system comprising: A controller; A communication interface, coupled with said controller and with said network; A backup storage unit, coupled with said controller, for storing backup versions of said basic data elements; A comparator, coupled with said controller, said backup storage unit and with said communication interface, for comparing between a list of basic data elements from a storage area of said network and a respective list of backed up basic data elements, thereby detecting new basic data elements listed in said list of basic data elements and absent from said respective list of backed up basic data elements, modified basic data elements listed in said list of data elements differently than in said respective list of backed up basic data elements and deleted basic data elements absent from said list of basic data elements and listed in said respective list of backed up basic data element; wherein said controller backs up said storage area of said network by copying the entirety of said new basic data elements and said modified basic data elements into said backup storage unit, and wherein said controller produces a deleted-element indicator respective of each of said deleted basic data elements, in said backup storage unit.