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:
Aug. 04, 2020
Filed:
Feb. 05, 2019
International Business Machines Corporation, Armonk, NY (US);
Theresa M. Brown, Tucson, AZ (US);
Nicolas M. Clayton, Warrington, GB;
Joshua J. Crawford, Tucson, AZ (US);
Nedlaya Y. Francisco, Tucson, AZ (US);
Theodore T. Harris, Jr., Tucson, AZ (US);
Gregory E. McBride, Vail, AZ (US);
Carol S. Mellgren, Tucson, AZ (US);
Damian Trujillo, Sahuarita, AZ (US);
Matthew J. Ward, Vail, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
One general aspect of asynchronous local and remote generation of consistent point-in-time snap copies in consistency groups in accordance with the present description, is directed to receiving a local-remote pair point-in-time snap copy establish command to establish a local point-in-time snap copy in a local data storage system, and a remote point-in-time snap copy in a remote data storage system. In one aspect, establishment of the remote point-in-time snap copy relationship may be delayed as a function of the state of a consistency group formation process upon receipt of the local-remote pair point-in-time snap copy establish command. As a result, consistency of the local-remote pair of point-in-time snap copies may be realized, notwithstanding an asynchronous relationship between the local and remote storage systems. Other features and aspects may be realized, depending upon the particular application.