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:
Jul. 01, 2025
Filed:
Nov. 27, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Deepak Kumar Shivanna Vokaliga, Hopkinton, MA (US);
Michael Daniel Anthony, Wilmington, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques are provided for incremental snapshot recovery from a remote storage system. One method comprises, in response to a request to restore a snapshot from a remote storage system: obtaining, from a local storage system, a first bitmap for the first snapshot indicating differences with respect to a previous snapshot, comparing the first bitmap to an allocation bitmap of an earliest maintained snapshot to obtain a baseline bitmap representing a baseline version of the first snapshot; recovering the baseline version of the first snapshot, using the baseline bitmap, from the remote storage system. The snapshots may be stored in the remote storage system in a time order, and following the recovery of the first snapshot, a user may move forward or backward in time along a lineage of snapshots by copying only the changed blocks of bitmaps between two desired points in time.