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:
May. 02, 2006
Filed:
Jun. 25, 2002
Applicants:
Douglas E. Lecrone, Hopkinton, MA (US);
Bruce A. Pocock, Titusville, FL (US);
Inventors:
Douglas E. LeCrone, Hopkinton, MA (US);
Bruce A. Pocock, Titusville, FL (US);
Assignee:
EMC Corporation, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
Data is copied from a source storage device to a destination storage device in a differential mode. An extents track defines all tracks to be transferred during a first copying operation. Complementary track tables for source and destination storage devices establishing the totality of changes in data since a previous copying program to limit subsequent copying to data on changed tracks only.