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:
Aug. 26, 2014
Filed:
Apr. 03, 2013
International Business Machines Corporation, Armonk, NY (US);
Lior Aronovich, Toronto, CA;
Samuel Krikler, Herzelia, IL;
Asaf Levy, Rishon Le Zion, IL;
Amit Schreiber, Kiriat Ata, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An original deduplication file system (DFS) file is partitioned into a first set of sections being sections including data affected by rewrite operations and a second set of sections being sections including data unaffected by rewrite operations. A new DFS file to be stored as part of a plurality of user files is created, the plurality of user files including the original DFS file and being accessible by a sequential DFS and a dynamic non-DFS, the dynamic non-DFS including a plurality of dynamic metadata files having entries pointing to corresponding sections of the original DFS files. The first set of sections of the original DFS file including data affected by rewrite operations is directly written into the new DFS file. The second set of sections from the original DFS file including data unaffected by rewrite operations is quoted into the new DFS file. The original DFS file is deleted.