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. 24, 2015
Filed:
Mar. 13, 2013
Emc Corporation, Hopkinton, MA (US);
Neelabh Mam, Jodhpur, IN;
EMC Corporation, Hopkinton, MA (US);
Abstract
Approaches are described for tracking write operations in an operating system environment which can be used to perform incremental backups of data. In particular, the approaches described herein enable a driver to begin tracking write operations being performed on a volume device (or snapshot of a volume) without having to reboot the system and without causing interruption to operations being performed on the volume. The tracking is enabled by applying a patch to a driver provided by the operating system to replace an original write handler of the driver with an alternate write handler. This alternate handler is used to track the sequence of write operations performed on a snapshot of the volume device. An active bitmap is maintained for recording changed blocks resulting from the write operations. Tins active bitmap can subsequently be used to perform an incremental backup of the volume device based on the snapshot.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile