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:
Oct. 22, 2013
Filed:
Jul. 22, 2011
Junichi Muto, Odawara, JP;
Isamu Kurokawa, Odawara, JP;
Ran Ogata, Odawara, JP;
Kazue Jindo, Odawara, JP;
Junichi Muto, Odawara, JP;
Isamu Kurokawa, Odawara, JP;
Ran Ogata, Odawara, JP;
Kazue Jindo, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To efficiently manage data including control information. A storage apparatus connected to a host requesting data writing includes one or a plurality of storage devices and a controller for allocating a storage area in page units to an area of a virtual volume to write the data in response to a request from the host to write the data wherein if the data regarding which the host makes the write request includes control information and data excluding the control information is specified data, the controller releases the allocation of the page allocated to the area for writing the relevant data.