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. 31, 2009

Filed:

Sep. 06, 2006
Applicant:

Kirill Malkin, Morris Plains, NJ (US);

Inventor:

Kirill Malkin, Morris Plains, NJ (US);

Assignee:

RELDATA, Inc., Parsippany, NJ (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The portion of a source block storage resource to be replicated, and the corresponding portion of the block storage resource being written to, are each divided into a predefined number of equal-sized spans. A digest calculation is then generated for each span in a corresponding pair and compared. If the digests do not match, those spans are divided into still smaller spans, and digests are calculated and compare iteratively, to identify smaller areas of discrepancies and reduce the number of blocks that are actually written.


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