Patent ID: 6505213
Filing Date: 2003-01-07
Classification: G06F,G11B,Y10S

Abstract:
A file management apparatus for use in an information processing device having an information storage device in which a plurality of storage media having different accessibility are hierarchically combined, comprising:a first control unit allowing a portable storage medium to store a body of a file with data for use in accessing the file, and then allowing the portable storage medium to be ejected from the information storage device; a second control unit allowing the portable storage medium to store only the body of the file without storing data for use in accessing the file, and then allowing the portable storage medium to be ejected from the information storage device; and a portable storage medium ejection request handling unit allowing either the first control unit or the second control unit to control an external request to retrieve the portable storage medium, wherein said plurality of storage media having different accessibility form one logical volume, and also form a spare logical volume storing data in the logical volume as duplex data, and said portable storage medium ejection request handling unit also controls a portable storage medium ejection request in the spare logical volume.