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:
Apr. 21, 2015
Filed:
Jan. 05, 2011
Rikiya Mizuta, Odawara, JP;
Yuko Matsui, Odawara, JP;
Masayuki Yamamoto, Sagamihara, JP;
Shigeo Homma, Odawara, JP;
Hiroshi Kawano, Tokyo, JP;
Rikiya Mizuta, Odawara, JP;
Yuko Matsui, Odawara, JP;
Masayuki Yamamoto, Sagamihara, JP;
Shigeo Homma, Odawara, JP;
Hiroshi Kawano, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A first storage control apparatus unit has a first logical volume. A second storage control apparatus unit has a second logical volume, which is a virtual logical volume and is mapped to the first logical volume, and a third logical volume that is associated with the first logical volume. The second storage control apparatus unit receives, from a host, an I/O command which has information including, as information denoting an I/O-destination area, an ID of the second logical volume and an address of an area of the second logical volume. The second storage control apparatus unit identifies a logical volume having an area that serves as an entity of the I/O-destination area, and a storage control apparatus unit that has this logical volume.