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. 18, 2019
Filed:
Nov. 13, 2017
International Business Machines Corporation, Armonk, NY (US);
Gregory E. McBride, Vail, AZ (US);
David C. Reed, Tucson, AZ (US);
Warren K. Stanley, Loveland, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to more efficiently utilize data structures in an asynchronous data replication system is disclosed. In one embodiment, such a method includes maintaining, in memory of a primary storage system, a set of data structures for mirroring updates from the primary storage system to a secondary storage system. Each data structure has a status of either active or inactive. The method further establishes an upper threshold and lower threshold for each data structure. The method receives, into active data structures, updates that need to be mirrored to the secondary storage system. When updates in each of the active data structures reaches the upper threshold, the method activates a deactivated data structure. When updates in an active data structure fall below the lower threshold, the method deactivates and drains the data structure. A corresponding system and computer program product are also disclosed.