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:
Jun. 08, 2010
Filed:
Mar. 12, 2004
Christina Woody Mercier, Scotts Valley, CA (US);
William Tracy Fuller, Cupertino, CA (US);
Donald Edward Banks, San Jose, CA (US);
Thomas Alan Rinehart, Durham, NC (US);
Bang Chang, Morrisville, NC (US);
Noel Christopher Melville, Santa Cruz, CA (US);
Christina Woody Mercier, Scotts Valley, CA (US);
William Tracy Fuller, Cupertino, CA (US);
Donald Edward Banks, San Jose, CA (US);
Thomas Alan Rinehart, Durham, NC (US);
Bang Chang, Morrisville, NC (US);
Noel Christopher Melville, Santa Cruz, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
An apparatus provides coherent data copying operations where data replication is controlled by a source storage controller directly to a destination controller and managed by a remote application. The apparatus generates a snapshot version for each source data block changed by one or more write operations to the source data block during the course of a copy operation; and copies each block of the source data to a corresponding block in the destination data in the absence of the snapshot version of the block and otherwise copying the snapshot version of the source data block to the corresponding block in the destination data.