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:
Jul. 28, 2015
Filed:
Nov. 29, 2012
Hitachi, Ltd., Tokyo, JP;
Satoru Kishimoto, Odawara, JP;
Youji Nakatani, Yokohama, JP;
Mitsunori Satomi, Tokyo, JP;
Yoji Sunada, Yokohama, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
In a first file storage apparatus, a first controller, which manages a first file system comprising a plurality of files, transfers a copy of the first file to a second file storage apparatus when managing the first file, manages the copy of the first file as a first replication file, configures the replication destination of the first replication file in the first file as a first pointer and, when processing a second file as a de-duplication target file, manages the first replication file as a copy of the first file and second file, configures a first pointer in the second file, and deletes the first data on condition that the storage destination of the first data which comprises the first file has been configured in the first file, or deletes the second data on condition that the storage destination of the second data which comprises the second file has been configured in the second file.