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:
Apr. 08, 2014
Filed:
Apr. 12, 2012
Makio Mizuno, Sagamihara, JP;
Masanori Takada, Yokohama, JP;
Tomohiro Yoshihara, Yokohama, JP;
Susumu Tsuruta, Odawara, JP;
Makio Mizuno, Sagamihara, JP;
Masanori Takada, Yokohama, JP;
Tomohiro Yoshihara, Yokohama, JP;
Susumu Tsuruta, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
According to a prior art data transfer method of a storage subsystem, when competition of data transfer accesses occurs, a free access destination port is allocated uniformly without determining the access type or the access state of the access destination, so that the performance of the device is not enhanced. The present invention solves the problem by selecting a data transfer access for completing data transfer with priority based on the access type or the remaining transfer data quantity of competing data transfer accesses, or by changing the access destination of an access standby data transfer access, thereby performing data transfer efficiently.