US 7,495,861 B2
Control apparatus, control method, and computer product for magnetic tape device
Yoshiaki Ochi, Kawasaki (Japan); and Yasuhiko Hanaoka, Kawasaki (Japan)
Assigned to Fujitsu Limited, Kawasaki (Japan)
Filed on Dec. 20, 2006, as Appl. No. 11/641,717.
Claims priority of application No. 2006-214839 (JP), filed on Aug. 07, 2006.
Prior Publication US 2008/0030887 A1, Feb. 07, 2008
Int. Cl. G11B 5/584 (2006.01)
U.S. Cl. 360—77.12 12 Claims
OG exemplary drawing
 
1. A magnetic-tape-device control apparatus that controls positioning of a head of a magnetic tape device to position the head at a target file among a plurality of files written to a magnetic tape, the magnetic-tape-device control apparatus comprising:
a storage unit that stores therein header data that identifies each of the files;
a reading unit that reads the header data stored in the storage unit, from header data of a first file written to the magnetic tape to the header data of the target file, in order in which the files have been written to the magnetic tape; and
a positioning unit that controls positioning of the head based on number of files whose header data have been read by the reading unit.