Patent attributes
A network device includes a first request unit configured to issue a first request for requesting information indicating a storage destination in which data stored in a storage device of the network device is stored as backup data and a transmission unit configured to transmit data stored in the storage device using the information indicating the storage destination received in response to the first request. A data management system includes a first response unit configured to respond with the information indicating the storage destination to the network device in response to the first request. In response to storing of the differential backup data from the network device in a storage system, before the differential backup data is stored, a process of merging full backup data managed in the storage system and the differential backup data is performed.
