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:
Aug. 11, 2015
Filed:
Jun. 25, 2012
Akira Hayakawa, Yokohama, JP;
Takaki Nakamura, Ebina, JP;
Keiichi Matsuzawa, Yokohama, JP;
Takayuki Fukatani, Yokohama, JP;
Akira Hayakawa, Yokohama, JP;
Takaki Nakamura, Ebina, JP;
Keiichi Matsuzawa, Yokohama, JP;
Takayuki Fukatani, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An aspect of this invention is a computer system, including: a storage apparatus for allocating real storage areas of a plurality of tiers of a tiered real storage area pool to a volume, and migrating and relocating data within the volume between the plurality of tiers; and a host apparatus that accesses the volume provided by the storage apparatus. The host apparatus is configured to refer to tier information including information on a corresponding one of the plurality of tiers to which an access destination address within the volume belongs to identify the corresponding one of the plurality of tiers to which the access destination address belongs and refer to settings predetermined for the plurality of tiers to perform I/O control for the access destination address based on settings of the identified corresponding one of the plurality of tiers.