| 摘要 |
<p>PROBLEM TO BE SOLVED: To reliably erase data in units of files in a storage device in which the structure of a file system originally cannot be recognized.SOLUTION: A storage device is connected to a computer that operates a file system which reserves, in a storage region of the storage device, a data region for storing the contents of a plurality of files and a management region for managing the plurality of files. The storage device includes: the storage region; file system monitor means which detects that the file system has performed the operation of erasing a file; and control means which when the file system monitor means detects the operation of erasing the file, performs erasure or writing to a region corresponding to the erased file in the storage region so as to bring the region into an unrestorable state.</p> |
