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:
Jul. 11, 2017
Filed:
Jun. 29, 2015
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Philippe Armangau, Acton, MA (US);
Feng Zhang, Shanghai, CN;
Ahsan Rashid, Edison, NJ (US);
Rohit Chawla, Scotch Plains, NJ (US);
Hao Pan, Shanghai, CN;
Diane M. Delgado, Carlisle, MA (US);
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/065 (2013.01); G06F 3/067 (2013.01); G06F 3/0631 (2013.01); G06F 3/0643 (2013.01);
Abstract
A technique for storage allocation provides a first cursor and a second cursor from which to allocate blocks within a physical address space of a file system. The file system uses the first cursor for allocating blocks for writes directed to sequential logical addresses and uses the second cursor for writes directed to random (non-sequential) logical addresses.