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:
Jul. 31, 2007
Filed:
Aug. 28, 2003
Satoshi Fukuda, Yokohama, JP;
Takuya Okamoto, Machida, JP;
Satoshi Fukuda, Yokohama, JP;
Takuya Okamoto, Machida, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A performance margin of a disk group is calculated upon allocating volumes to disk groups based on a condition on performance requested per operating time zone of a volume designated by a client and on history information obtained from a result of actually operating the disk groups. In accordance therewith, a volume candidate is obtained, as an allocation target, from the disk groups and the obtained volume candidate is presented to the client. The client selects one of the volume candidates. It is possible to prevent deterioration in performance which is caused by excessive access performance of the allocated disk group when the volume is allocated and is operated.