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.:

US 8694742 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 08, 2014

Filed:

Feb. 21, 2013
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Shintaro Inoue, Odawara, JP;

Yutaka Takata, Ninomiya, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A storage system and data management method is provided that improves the reliability and fault tolerance of the hard disks saving data utilizing an AOU function. A storage system comprises a first correlating section for correlating a plurality of RAID groups composed of a plurality of physical disks, and the pool region, a second correlating section for correlating the pool region and the storage regions of the virtual volumes, a first allocation section for allocating first data from the host apparatus to the first storage region of the first RAID group based on write requests from the host apparatus, and a second allocation section for distributing second data from the host apparatus at and allocating the second data to any storage regions of the RAID group, with the exception of the first storage region of the first RAID group allocated by the first allocation section, based on write requests.


Find Patent Forward Citations

Inoue, Shintaro. (2014). Storage system and data management method for mirroring volumes with allocate on use function (U.S. Patent No. 8694742). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8694742

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