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:
May. 21, 2013
Filed:
Aug. 17, 2011
Takashi Yasui, Kokubunji, JP;
Masaaki Shimizu, Mitaka, JP;
Takashi Yasui, Kokubunji, JP;
Masaaki Shimizu, Mitaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A system including plural storage devices provides a technique for controlling storage devices in which files are located by a file system, and turning on or off the storage devices based on prediction of the start or end of access to the files. A program that manages power to the storage devices and data access to the storage devices via the files includes means or functions for allocating a storage device as an area in which a file is located, for selecting a storage device in which a file is located, for predicting that access to a file is started for commanding turning on power to a storage device based on the prediction that access to a file is started, for predicting that access to a file terminates, and for commanding turning off power to a storage device based on the prediction that access to a file terminates.