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:
Jun. 03, 2014
Filed:
Mar. 02, 2011
Nobuhito Mori, Kawasaki, JP;
Masayasu Asano, Yokohama, JP;
Nobuhito Mori, Kawasaki, JP;
Masayasu Asano, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To reduce the number of data copies between volume pools by preventing occurrence of unevenness of resource usage between the pools, provided is a computer system including: storage apparatus; and host computer coupled to the storage apparatus, the storage apparatus including physical storage device, the storage apparatus holding information associating virtual volumes and pools each including real storage areas of the physical storage device, the storage apparatus allocating, to the virtual volume of a write destination designated by the host computer, the real storage areas included in each of the plurality of pools corresponding to the virtual volume of the write destination, and storing the data therein, the computer system being configured to: determine, based on the information held by the storage apparatus, orders of priority of the volumes of the write destination by the host computers; and hold the determined orders of priority.