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. 04, 2020
Filed:
Mar. 25, 2019
Western Digital Technologies, Inc., San Jose, CA (US);
Raghavendra Gopalakrishnan, Bengaluru, IN;
Nicholas Thomas, Edinburgh, GB;
Karin Inbar, Ramat-Hasharon, IL;
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
In one embodiment, there is a method for managing data in a storage device comprising a non-volatile memory having a plurality of jumbo blocks, each jumbo block having a separate and distinct physical block address. The method comprises performing a folding operation data associated with a first virtual address from a plurality of Single Level Cell (SLC) jumbo blocks of the non-volatile memory to one Multilevel Cell (MLC) jumbo block of the non-volatile memory, receiving a read request to read data associated with a first logical block address, identifying that the first virtual address is associated with the first logical block address, determining whether a jumbo block associated with the first logical block address meets pre-SLC-overwrite criteria. In response to a determination that the jumbo block associated with the first logical block address meets pre-SLC-overwrite criteria, reading data from the SLC jumbo block associated with the first virtual address. In response to a determination that the jumbo block associated with the first logical block address does not meet pre-SLC-overwrite criteria, reading data from the MLC jumbo block associated with the first virtual address.