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:
Dec. 06, 2011
Filed:
Apr. 20, 2009
Stanley Luke, Stow, MA (US);
Nils Wygant, Nashua, NH (US);
Aamir Rashid, Sharon, MA (US);
Ravikanth Dronamraju, Pleasanton, CA (US);
Stanley Luke, Stow, MA (US);
Nils Wygant, Nashua, NH (US);
Aamir Rashid, Sharon, MA (US);
Ravikanth Dronamraju, Pleasanton, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
Data storage volumes, such as a file system on a storage system, may utilize a particular operating system format. Converting a volume to a different format may be desirable at times. However, this can be time consuming and resource intensive if data needs to be copied. Accordingly, substantially copying-free, in-place conversion of a data-storage volume from a first format to a second format is provided herein. In one embodiment, it is determined whether the volume can be converted, for example, by comparing compatibility of features between the first and second formats. A desired feature list is retrieved and respective features are checked for compatibility. Access to the volume is blocked during the conversion, and the volume is converted if the features are found to be compatible. If the conversion is successful, post conversion operations are performed, including unblocking the volume and notifying clients that the volume is available for access.