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:
Nov. 17, 2009
Filed:
Nov. 09, 2006
Hidetoshi Sakaki, Odawara, JP;
Hisaharu Takeuchi, Odawara, JP;
Masami Maeda, Odawara, JP;
Masaru Tsukada, Odawara, JP;
Hidetoshi Sakaki, Odawara, JP;
Hisaharu Takeuchi, Odawara, JP;
Masami Maeda, Odawara, JP;
Masaru Tsukada, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of the present invention is to integrally manage disk storage apparatuses through virtualization. Some physical storage apparatusesconnected to a host computervia a communication networkare virtualized with a virtual switch, a control unit, and a virtual device. The physical storage apparatus specifies a command when receiving the command from the host computer, and accesses, if the command access has been made to its own physical storage apparatus, a real disk via the virtual control unitand virtual device, and executes I/O processing. If the command access is not made to its own physical storage apparatus, the physical storage apparatusdirects the command to the transmission target via the virtual switch. The physical storage apparatusesare integrally managed according to the command in the above described manner.