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. 12, 2013
Filed:
Mar. 30, 2011
Vinod Jayaraman, San Francisco, CA (US);
Goutham Rao, Los Altos, CA (US);
Ratna Manoj Bolla, Hyderabad, IN;
Vinod Jayaraman, San Francisco, CA (US);
Goutham Rao, Los Altos, CA (US);
Ratna Manoj Bolla, Hyderabad, IN;
Dell Products L.P., Round Rock, TX (US);
Abstract
Techniques and mechanisms are provided to instantly clone active files including active optimized files. When a new instance of an active file is created, a new stub is generated in the user namespace and a block map file is cloned. The block map file includes the same offsets and location pointers that existed in the original block map file. No user file data needs to be copied. If the cloned file is later modified, the behavior can be same as what happens when a de-duplicated file is modified.