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:
Oct. 25, 2011
Filed:
Dec. 10, 2009
Matthew A. Huras, Markham, CA;
Roger L. Zheng, Markham, CA;
Aamer Sachedina, Markham, CA;
James L. Finnie, Markham, CA;
Keriley K. Romanufa, Markham, CA;
Xun Xue, Markham, CA;
Andrew D. Buckler, Markham, CA;
Stewart L. Palmer, Yorktown Heights, NY (US);
Matthew A. Huras, Markham, CA;
Roger L. Zheng, Markham, CA;
Aamer Sachedina, Markham, CA;
James L. Finnie, Markham, CA;
Keriley K. Romanufa, Markham, CA;
Xun Xue, Markham, CA;
Andrew D. Buckler, Markham, CA;
Stewart L. Palmer, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for managing shared resources is disclosed. The system includes a primary coherency processing unit which processes lock requests from a plurality of data processing hosts, the primary coherency processing unit also storing a first current lock state information for the plurality of data processing hosts, the first current lock state information including a plurality of locks held by the plurality of data processing hosts. The system further includes a standby coherency processing unit storing fewer locks than the primary coherency processing unit, the locks stored by the standby coherency processing unit being a subset of locks included in the first current lock state information, the standby coherency unit configured to perform a plurality of activities of the primary coherency processing unit using the subset of locks in response to a failure of the primary coherency processing unit.