Executing a file backup process

摘要

A technique to execute a backup process efficiently when an identical file is owned by multiple persons in order to decrease storage capacity and traffic volume requirements. In a backup system including a backup execution terminal, backup destination terminals, and a management server, the backup execution terminal executes a deemed backup process for deeming the file identical to the target file and owned on the backup destination terminals to be a backup duplicate of the target file, or an actual backup process for sending the target file to the management server, each of the backup destination terminals stores the backup execution terminal and the file identical to the target file in association with each other at the time of the deemed backup, and the management server stores the target file sent from the backup execution terminal at the time of the actual backup.

主权项

1. A computer comprising a processor coupled to a memory having instructions stored therein that are operable when executed by the processor to perform steps of:
acquiring a list of other computers having a file identical to a target file to be backed up and owned on the computer, and terminal information on the other computers; determining whether to execute a deemed backup process for deeming the file identical to the target file and owned on the other computers to be a backup duplicate of the target file based on the acquired list and the acquired terminal information; and responsive to determining to execute the deemed backup process, notifying the other computers having the file identical to the target file that the file identical to the target file is deemed to be a backup duplicate of the target file.