FIELD: information technology.
SUBSTANCE: data processing device, which is configured to back up data in an external memory module, includes: an access control module configured to set up an accessible state of the external memory module; a setup module configured to set up the external memory module as a backup destination; and a backup module configured to backup data in the external memory module which is set up in an accessible state and as a backup destination. The access control module is configured not to revoke the accessible state of the external memory module which is set up as a backup destination, even when data are not stored in the external memory module.
EFFECT: reducing data backup failures.
17 cl, 18 dwg
