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. 27, 2005
Filed:
Oct. 16, 2002
Weibao Wu, Roseville, MN (US);
Sinh D. Nguyen, Eden Prairie, MN (US);
Kirk W. Clowser, Dellwood, MN (US);
Weibao Wu, Roseville, MN (US);
Sinh D. Nguyen, Eden Prairie, MN (US);
Kirk W. Clowser, Dellwood, MN (US);
VERITAS Operating Corporation, Mountain View, CA (US);
Abstract
A deleted snapshot of a data volume may be reconstructed from an existing snapshot and one or more modification logs. For example, modifications to the data volume that occur subsequent to creation of a first snapshot may be logged in a modification log. If the first snapshot is deleted, the first snapshot may be reconstructed by modifying a second snapshot, created after the first snapshot, according to the modification log in order to undo any modifications made to the data volume prior to creation of the second snapshot and after creation of the first snapshot.