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. 05, 2022
Filed:
Sep. 14, 2020
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0604 (2013.01); G06F 3/067 (2013.01); G06F 3/0667 (2013.01);
Abstract
A processor of a NAS performs a calling process of a local file system based on an operation request of a file from an application, the local file system processes the operation request of the file, an IO Hook program performs an update process of state management information of the file based on input information with respect to the local file system related to the operation request or an operation content, and a file virtualization program performs a management process of the file between the NAS and a CAS based on the state management information.