A data processing system in which resources of a remote copy are prevented from being wasted uselessly during a data-retention period is provided. The data processing system includes: an application server 2000, a primary storage system 4000 which stores data used by the application server in a first storage volume, a secondary storage volume 5000 which stores the copy of data stored in the primary storage system in a second storage volume, and a management server 1000 which controls the primary storage system and secondary storage system; and the primary storage system and secondary storage system are configured to include an access control table in which an access inhibited or access permitted state with respect to the first storage volume and second storage volume is stored, and a remote copy pair table in which a corresponding relation between the first storage volume and the second storage volume is stored.