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:
Jun. 09, 1998
Filed:
Sep. 09, 1996
Applicant:
Inventors:
John R Catozzi, San Diego, CA (US);
Sorana Rabinovici, Woodland Hills, CA (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39520045 ; 707-3 ; 707 10 ; 707204 ; 39520031 ; 39520041 ; 711173 ;
Abstract
A processor method and apparatus for parallel computer systems for synchronizing the flushing of database segments by a node through shared disk tokens. The system provides for flushing database segments at each of the processor nodes through use of a persistent storage semaphore stored as a plurality of disk tokens and a set of control flags in a synchronization segment on a shared data storage device.