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:
Oct. 08, 2013
Filed:
Jul. 15, 2008
Paresh Chatterjee, Fremont, CA (US);
Narayanan Balakrishnan, Milpitas, CA (US);
Raja Jayaraman, Fremont, CA (US);
Narayanaswami Ganapathy, Fremont, CA (US);
Paresh Chatterjee, Fremont, CA (US);
Narayanan Balakrishnan, Milpitas, CA (US);
Raja Jayaraman, Fremont, CA (US);
Narayanaswami Ganapathy, Fremont, CA (US);
American Megatrends, Inc., Norcross, GA (US);
Abstract
Technologies for providing block-level continuous data protection can operate without additional external devices. I/O operations to a storage volume may be logged to a sequential journal volume. The logging can occur in parallel to the I/O operation thereby having little, or no, impact on the performance of the storage system. Previous data need not be backed up; instead only new I/O operations may be recorded in the journal or log. Snapshot events may also be recorded to the logging journal. When a volume is to be recovered, a snapshot can be mounted and I/O operations after the snapshot creation, but prior to the recovery point, can be played back onto the snapshot. Operators may be provided with a flexible mechanism for reviewing and recovering data after a data loss. Using snapshots and I/O journals, a volume can be rolled back to a desired point nearly instantaneously.