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:
Jan. 03, 2017
Filed:
Feb. 18, 2016
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
David D. Chambliss, Morgan Hill, CA (US);
Ehood Garmiza, Neve Ziv, IL;
Leah Shalev, Zichron-Yaakov, IL;
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/08 (2016.01); G06F 12/12 (2016.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0833 (2013.01); G06F 11/1076 (2013.01); G06F 12/0804 (2013.01); G06F 12/126 (2013.01); G06F 12/128 (2013.01); G06F 12/0868 (2013.01); G06F 2211/1057 (2013.01); G06F 2212/621 (2013.01); G06F 2212/69 (2013.01);
Abstract
Methods, apparatus and computer program products implement embodiments of the present invention that include identifying non-destaged first data in a write cache. Upon detecting second data in a master read cache, the second data is pinned to the master and one or more backup read caches. Using the first data stored in the write cache and the second data stored in the master read cache, one or more parity values are calculated, and the first data and the one or more parity values are destaged.