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. 01, 2011
Filed:
Mar. 24, 2009
Atsushi Ueoka, Yokohama, JP;
Takeshi Ishizaki, Yokohama, JP;
Yasunori Kaneda, Sagamihara, JP;
Masayuki Yamamoto, Sagamihara, JP;
Atsushi Ueoka, Yokohama, JP;
Takeshi Ishizaki, Yokohama, JP;
Yasunori Kaneda, Sagamihara, JP;
Masayuki Yamamoto, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system to prevent intervention and falsification by setting encrypted transfer between a host computer and a first storage device that provides a virtual volume and between the first storage device and second and third storage devices that provide a real volume corresponding to the virtual volume. A management computer specifies the second and third storage device that provide the real volume corresponding to the virtual volume by providing a volume corresponding to the virtual volume used by a host computer in which encrypted transfer becomes necessary, and setting the encrypted transfer to communication between the first storage device and the second and third storage devices, makes a reconnection thereof, and also sets the encrypted transfer to an I/O port used for the communication with the host computer in the first storage device.