The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2010
Filed:
Sep. 15, 2006
Etsutaro Akagawa, Kawasaki, JP;
Takahiro Nakano, Yokohama, JP;
Koji Sonoda, Sagamihara, JP;
Hitachi, Ltd., , JP;
Abstract
A tape library comprises: a plurality of tape media; a plurality of slots in which the plurality of tape media are respectively stored; a drive in which a tape medium extracted from any of the plurality of slots is set and which performs tape reading or writing in respect of this tape medium; and a controller by which a tape medium is extracted from a designated slot of these plurality of slots and set in the drive. The host computer comprises: a plurality of virtual computers; a first storage region in which is stored slot allocation information expressing which slot is allocated to which virtual computer; and an access control unit that specifies the slot allocated to a first virtual computer, of the plurality of the virtual computers, from the slot allocation information, and restricts access from the first virtual computer to the tape medium in the specified slot.