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:
Apr. 22, 2011
Takayuki Fukatani, Yokohama, JP;
Hitoshi Kamei, Sagamihara, JP;
Yohsuke Ishii, Yokohama, JP;
Masaaki Iwasaki, Tachikawa, JP;
Takayuki Fukatani, Yokohama, JP;
Hitoshi Kamei, Sagamihara, JP;
Yohsuke Ishii, Yokohama, JP;
Masaaki Iwasaki, Tachikawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Appropriate control is performed for data blocks and data block groups in a file. A file system having various functions provides an upper program with an interface for changing size, storage position and processing method in each function of extents being data block management units in a file. The file system can improve the effects aimed by the respective functions by implementing the extent configuration and processing optimized for the various functions of the file system, based on the instruction from the upper program.