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:
Apr. 23, 2013
Filed:
Nov. 13, 2009
Rahul Iyer, Sunnyvale, CA (US);
Deepak Kenchammana-hosekote, Sunnyvale, CA (US);
Arthur F. Lent, Sunnyvale, CA (US);
Rahul Iyer, Sunnyvale, CA (US);
Deepak Kenchammana-Hosekote, Sunnyvale, CA (US);
Arthur F. Lent, Sunnyvale, CA (US);
Network Appliance, Inc., Sunnyvale, CA (US);
Abstract
Embodiments of the present invention provide a method and system, in a network storage system, for efficiently migrating a storage object (vdisk) from a first storage server (source) to a second storage server (destination) using data of a related vdisk at the destination. A related vdisk includes an earlier created vdisk (parent) from which the vdisk to be migrated (child) is generated (cloned). By virtue of the cloned relationship, the parent and child have a portion of data blocks in common. When a parent is available at the destination, only the changed data blocks between the parent and child need to be migrated for efficiently constructing the child at the destination.