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:
Sep. 24, 2019
Filed:
Nov. 09, 2017
International Business Machines Corporation, Armonk, NY (US);
Carlos D. Cavanna, Toronto, CA;
Ann Corrao, Raleigh, NC (US);
Robert Francis, Ontario, CA;
Ronen Grosman, Ontario, CA;
Hamdi Roumani, Ontario, CA;
Ao Wan, Ontario, CA;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A request for changing data of a file system data structure stored on a shingled magnetic recording (SMR) drive is received. The data change is logged in a log entry of a log structure stored in a non-volatile random access memory (NVRAM). The log entry is added as a new entry at an end of the log structure. The log entry is marked within the NVRAM as modified and a predetermined criterion is determined to be satisfied. Responsive to determining that the predetermined criterion is satisfied, the NVRAM is searched for log entries marked as modified. The modified log entries are stored to the SMR drive.