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:
Jan. 13, 2009
Filed:
Sep. 21, 2004
Takeshi Ido, Tokyo, JP;
Youichi Gotoh, Tokyo, JP;
Shizuo Yokohata, Tokyo, JP;
Shigeo Honma, Tokyo, JP;
Toshiyuki Yoshino, Tokyo, JP;
Takeshi Ido, Tokyo, JP;
Youichi Gotoh, Tokyo, JP;
Shizuo Yokohata, Tokyo, JP;
Shigeo Honma, Tokyo, JP;
Toshiyuki Yoshino, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Software Engineering Co., Ltd., Yokohama, JP;
Abstract
In response to requests for I/O processing sent from a computer, I/O which should be processed at a priority is enabled to be processed without being affected by other processing, by classifying I/O into those to be processed at a priority and those not to be processed at a priority. The storage control apparatus comprises an I/O processing controller with a memory that is common for the whole controller. The storage control apparatus manages information for dividing and controlling a plurality of I/O processes as priority and non-priority in that memory and operates while suppressing non-priority I/O processing on the basis of information in the memory.