Patent ID: 7904426
Filing Date: 2011-03-08
Classification: G06F,Y10S

Abstract:
1. A method for identifying a removable storage device within a computer system that can be connected to a computer and a plurality of storage devices, the method comprising steps of: acquiring identification information about a file stored on one of the plurality of said storage devices and migration file information, wherein said identification information includes an extension, a creation date and time, and an update date and time for the file, and said migration file information includes judging whether the migration file information about the file on one of the plurality of storage devices indicates that migration verification for the file is not finished by referring to the storage-device-specific file table; judging, when the migration verification is indicated as not finished, based on referring to the unnecessary-file table, whether said migration file information about said file stored on said one of the plurality of said storage devices indicates that said file conforms to the unnecessary-file conditions; judging, when said identification information about said file stored on said one of the plurality of storage devices does not conform to the unnecessary-file conditions, whether said file stored on said one of the plurality of storage devices is already migrated to another storage device; and if all the files stored on said one of the plurality of storage devices are in the unnecessary-file table, or are already migrated to said another storage device though files stored on said one of the plurality of storage devices do not conform to the unnecessary-file conditions, then generating identification information about said one of the plurality of storage devices as a removable device.