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:
Feb. 28, 2006
Filed:
Oct. 30, 2003
Michiaki Sekine, Tokyo, JP;
Takeaki Murakoso, Hiratsuka, JP;
Michiaki Sekine, Tokyo, JP;
Takeaki Murakoso, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of the present invention is to shorten a transfer time when a virtual tape volume is used on another computer. A system A incorporating a virtual tape unit is connected to a system B at a remote place via a network. A virtual tape transfer processing unit of the present invention inputs and outputs a virtual tape volume of the system A between virtual tape management information and a virtual tape file. The virtual tape file is copied using a copy function between magnetic disk drives so as to be asynchronous to the systems. An input/output request conversion part allows a tape using task of the system B to use the virtual tape file as a magnetic tape file.