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:
Dec. 02, 2008
Filed:
Dec. 17, 2007
Applicants:
Hiroshi Ohno, Odawara, JP;
Hideo Tabuchi, Odawara, JP;
Akinobu Shimada, Chigasaki, JP;
Masataka Innan, Odawara, JP;
Inventors:
Hiroshi Ohno, Odawara, JP;
Hideo Tabuchi, Odawara, JP;
Akinobu Shimada, Chigasaki, JP;
Masataka Innan, Odawara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A DBMS performs a checkpoint process for maintaining consistency of data. A snapshot acquisition control program detects the checkpoint process externally to the DBMS and creates a snapshot in an external storage according to the timing of the checkpoint. Correspondence between checkpoints and snapshots is maintained in a CP-SH correspondence management table to make it possible to restore in a short time data at the time of an arbitrary checkpoint.