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:
Dec. 03, 2019
Filed:
Jun. 18, 2018
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Lyndon S. Chiu, Irvine, CA (US);
Frederick H. Adi, Costa Mesa, CA (US);
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0804 (2016.01); G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0804 (2013.01); G06F 3/0619 (2013.01); G06F 3/0647 (2013.01); G06F 3/0659 (2013.01); G06F 3/0685 (2013.01); G06F 3/0689 (2013.01); G06F 11/1441 (2013.01); G06F 12/0246 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/2022 (2013.01);
Abstract
Embodiments of the invention include systems and methods for recovering the system status and maintaining drive coherency after an unexpected power loss. In particular, these systems and methods reduce overhead for maintaining drive coherency by providing for pre-allocation of groups of write addresses and recording the pre-allocated groups of addresses to the non-volatile memory. Write processes can write to the pre-allocated group of addresses while the next group of addresses are pre-allocated and recorded to non-volatile memory.