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. 21, 2012
Filed:
Oct. 23, 2009
Koh Nakamichi, Yokohama, JP;
Yuichi Taguchi, Sagamihara, JP;
Koh Nakamichi, Yokohama, JP;
Yuichi Taguchi, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of the present invention is to properly estimate a storage capacity or the performance of a storage device to be prepared in a remote site. In an information system, a first storage devicestores data of a first host computerin a first virtual volume provided by thin provisioning using a first volume as a resource, and a second storage devicestores data of a second host computerin a second virtual volume provided by thin provisioning using a second volume as a resource. An information apparatus (management device) in the information systemacquires the history of data writing in the new data area of the first volume on the basis of the base volume and the differential volume, then generates a transition of an allocation capacity of a storage area of the first volume on the basis of the acquired history of data writing in a new data area of the first volume. The information apparatus then finds, on the basis of the generated transition, a capacity of the second volume to be required after a predetermined period of time.