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. 19, 2008
Filed:
Nov. 04, 2004
Kenta Shiga, Yokohama, JP;
Daiki Nakatsuka, Yokohama, JP;
Kenta Shiga, Yokohama, JP;
Daiki Nakatsuka, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A system is provided in which a first storage device for managing a target to which a first physical port and a first logical volume are allocated, a second storage device for managing a second logical volume, and a computer for establishing a first communication path with the first physical port and conducting access to the target by using the communication path. The first storage device creates in the second storage devices a target holding an identifier identical to that of the aforementioned target and allocates the second logical volume and a second physical port to the target, and the computer establishes a second communication path with the second physical port and maintains the access to the target by using the second communication path.