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. 01, 2019
Filed:
Jan. 21, 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 for auditing data consistency in an asynchronous data replication environment is disclosed. In one embodiment, such a method includes copying, at a primary storage system, a primary data track and recording a time that the primary data track was copied. The method replicates the primary data track and associated time from the primary storage system to a secondary storage system. The method applies, to a corresponding secondary data track at the secondary storage system, all updates received for the secondary data track that have a timestamp prior to the time. The method then reads the secondary data track at the secondary storage system after the updates have been applied, and compares the secondary data track to the primary data track. If the secondary data track does not match the primary data track, the method records an error. A corresponding system and computer program product are also disclosed.