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:
Aug. 31, 2021
Filed:
Jun. 13, 2019
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Philip N. Shilane, Newtown, PA (US);
Grant R. Wallace, Pennington, NJ (US);
Assignee:
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0831 (2016.01); G06F 12/128 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0831 (2013.01); G06F 12/128 (2013.01); G06F 2212/621 (2013.01); G06F 2212/69 (2013.01);
Abstract
Systems and methods for rebuilding an index for a flash cache are provided. The index is rebuilt by reading headers of containers stored in the cache and inserting information from the headers into the index. The index is enabled while being rebuild such that lookup operations can be performed using the index even when the index is incomplete. New containers can be inserted into used or unused regions of the cache while the index is being rebuilt.