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. 16, 2013
Filed:
Nov. 24, 2008
Applicant:
Vijayan Rajan, Mountain View, CA (US);
Inventor:
Vijayan Rajan, Mountain View, CA (US);
Assignee:
NetApp, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique enables creation and use of a writable, read-only snapshot of an active file system operating on a storage system, such as a multi-protocol storage appliance. The writable, read-only snapshot comprises a read-only 'image' (file) residing in a snapshot and a writable virtual disk (vdisk) residing in the active file system. The writable vdisk is a 'shadow' image of the snapshot file image and, as such, includes an attribute that specifies the snapshot file as a backing store.