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:
Nov. 02, 2021
Filed:
Oct. 29, 2019
Dell Products L.p., Round Rock, TX (US);
Xiangping Chen, Sherborn, MA (US);
Svetlana Kronrod, Concord, MA (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A method is disclosed for use in a storage system including a source system that is coupled to a target system, the method comprising: detecting a rollback event that is associated with a source volume Vs; and performing a rollback of the source volume Vs in response to the rollback event, wherein performing the rollback of the source volume Vs includes: identifying a target snapset Sr to be rolled back to, the target snapset Sr having a creation time Tr; identifying a snapset recovery pair including a source snapset Sk and a target snapset Sk', the source snapset having a creation time Ts, and the target snapset having a creation time Tt, such that Tr≤Ts≤Tt; assigning the source volume Vs to the source snapset Sk; and update the source volume Vs based on a difference between the target snapset Sr and the target snapset Sk′.