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.

Date of Patent:
Mar. 29, 2016

Filed:

Apr. 04, 2013
Applicant:

Cirrus Data Solutions, Inc., Jericho, NY (US);

Inventors:

Wai T. Lam, Jericho, NY (US);

Wayne Lam, Jericho, NY (US);

Yik Shum Tam, Syosset, NY (US);

Assignee:

Cirrus Data Solutions, Inc., Jericho, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 11/10 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/067 (2013.01); G06F 3/0619 (2013.01); G06F 11/1004 (2013.01); G06F 3/0647 (2013.01); G06F 17/30949 (2013.01);
Abstract

A first volume comprising a plurality of blocks stored in a first location is accessed. A plurality of hash values representing the plurality of blocks is stored. The plurality of blocks is copied to a second volume stored in a second location, generating a copied volume. The copied volume is verified based on the plurality of hash values. In one embodiment, the first volume is altered, after the plurality of hash values is stored. Altering the first volume may include changing data in a selected one of the plurality of blocks. The first volume may be altered during copying of the plurality of blocks to the second volume.


Find Patent Forward Citations

Loading…