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.

Date of Patent:
Dec. 13, 2016

Filed:

Apr. 26, 2011
Applicants:

John A. Starks, Seattle, WA (US);

Dustin L. Green, Redmond, WA (US);

Todd William Harris, Sammamish, WA (US);

Mathew John, Redmond, WA (US);

Senthil Rajaram, Seattle, WA (US);

Eric Traut, Bellevue, WA (US);

Inventors:

John A. Starks, Seattle, WA (US);

Dustin L. Green, Redmond, WA (US);

Todd William Harris, Sammamish, WA (US);

Mathew John, Redmond, WA (US);

Senthil Rajaram, Seattle, WA (US);

Eric Traut, Bellevue, WA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 3/12 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 9/455 (2013.01); G06F 3/0619 (2013.01); G06F 3/0664 (2013.01); G06F 3/0683 (2013.01); G06F 3/0644 (2013.01); G06F 3/0689 (2013.01); G06F 3/121 (2013.01);
Abstract

In an exemplary embodiment, a virtual disk file can be assigned an identifier and a virtual disk files that is dependent on the virtual disk file can include a copy of the identifier. In the instance that the virtual disk file is opened and data is modified that causes the contents of a virtual disk extent to change the identifier can be changed. If the virtual disk file and the dependent virtual disk file are used to instantiate a virtual disk the difference between identifiers can be detected, which is indicative of the fact that the virtual disk may be corrupted. Other techniques are described in the detailed description, claims, and figures that form a part of this document.


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