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:
Mar. 05, 2013
Filed:
Dec. 12, 2011
Yusuke Nonaka, Sagamihara, JP;
Akira Yamamoto, Sagamihara, JP;
Naoto Matsunami, Hayama, JP;
Koji Sonoda, Sagamihara, JP;
Yusuke Nonaka, Sagamihara, JP;
Akira Yamamoto, Sagamihara, JP;
Naoto Matsunami, Hayama, JP;
Koji Sonoda, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A file system including: a first type storage medium; a second type storage medium; and a processor providing a file system using a first area in the first type storage medium and a second area in the second type storage medium, wherein the processor manages whether metadata is permitted to be stored in each of the first area and second area, stores a first file and first metadata of the first file in the first area, which is managed to permit storing metadata, migrates the first file stored in the file system to the second area, which is managed not to permit storing metadata, and changes the first metadata stored in the first area to point to a location of the first file in the second area.