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:
Sep. 22, 2009
Tomohiro Kawaguchi, Cupertino, CA (US);
Toshio Otani, Sunnyvale, CA (US);
Atsushi Murase, Sunnyvale, CA (US);
Tomohiro Kawaguchi, Cupertino, CA (US);
Toshio Otani, Sunnyvale, CA (US);
Atsushi Murase, Sunnyvale, CA (US);
Hitachi, Ltd., Tokyo, JP;
Abstract
For storage management in a tiered storage environment in a system having one or more applications running on a host computer which is connected to a storage system, the storage system comprises storage volumes in a pool which are divided into a plurality of tiers having different tier levels, the tiers being organized according to a tier configuration rule; and a controller. The controller allocates the pool to a plurality of virtual volumes based on a change of the tier levels against the physical storage devices. The controller stores a relation between data in the storage system being accessed by each application running on the host computer and an application ID of the application accessing the data. The tier level of a portion of a storage volume of the plurality of storage volumes is changed based at least in part on the application accessing data in the storage volume.