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:
Mar. 17, 2009
Filed:
Jul. 14, 2005
Sarosh Cyrus Havewala, Redmond, WA (US);
Guhan Suriyanarayanan, Redmond, WA (US);
Christophe Franck Robert, Newcastle, WA (US);
Shobana Balakrishnan, Redmond, WA (US);
Sarosh Cyrus Havewala, Redmond, WA (US);
Guhan Suriyanarayanan, Redmond, WA (US);
Christophe Franck Robert, Newcastle, WA (US);
Shobana Balakrishnan, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A computing device has a storage volume, a file system managing the storage volume, and a file stored on the storage volume and accessed by such file system. The file system receives an open command for the file from an application, notes that the file has been ghosted in that data of the file has been moved to an alternate location, and returns an error. The returned error is intercepted and the file system is commanded to retrieve ghosting information from the ghosted file. A handle corresponding to the ghosted file is delivered to the application, and a read command for the file is received from the application, including the handle, an offset, and a read length. Reconstituting of the ghosted file is initiated based on the data thereof at the alternate location, and after reconstituting the read command is responded to with the data requested.