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:
Dec. 26, 2006
Filed:
Feb. 06, 2004
Adam M. Phelps, San Francisco, CA (US);
Adam M. Phelps, San Francisco, CA (US);
3PARdata, Inc., Fremont, CA (US);
Abstract
A method for resynchronizing a primary volume in a primary system and a secondary volume in a secondary system over a network includes, when a network connection between the primary system and the secondary system is interrupted, creating a snapshot of the primary volume and determining data updates transmitted from the primary system to the secondary system that were not acknowledged by the secondary system. The method further comprises, when the network connection is reestablished, determining differences between the snapshot and the primary volume, transmitting the differences and the unacknowledged data updates from the primary system to the secondary system, and updating the secondary volume with the differences and the unacknowledged data, wherein the secondary volume becomes an updated copy of the primary volume.