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:
Nov. 21, 2017
Filed:
Feb. 24, 2015
Sandisk Technologies Llc, Plano, TX (US);
Girish B. Desai, Cupertino, CA (US);
William L. Guthrie, Santa Cruz, CA (US);
SanDisk Technologies LLC, Plano, TX (US);
Abstract
Systems, methods and/or devices are used to enable enhancing data integrity to protect against returning old versions of data. In one aspect, the method includes (1) receiving a write request from a host that specifies write data for a set of logical block addresses in a logical address space of the host, (2) mapping the set of logical block addresses to a set of physical addresses corresponding to physical pages of the storage device, and (3) performing one or more operations for each logical block specified by the set of logical block addresses, including: (a) generating metadata for the logical block, the metadata including a version number for the logical block, (b) storing the metadata, including the version number, in a header of a physical page in which the logical block is stored, and (c) storing the version number in a version data structure.