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:
Oct. 15, 2019
Filed:
Dec. 04, 2015
Shannon Systems Ltd., Shanghai, CN;
Zhen Zhou, Shanghai, CN;
Xueshi Yang, Cupertino, CA (US);
SHANNON SYSTEMS LTD., Shanghai, CN;
Abstract
A method and system provide for storage device metadata management. The storage device metadata management method comprises: a superblock is formed of at least one erase block; the superblock reserves a space for storing metadata related to the superblock; the metadata related to the superblock comprises a serial number distributed to the superblock and address mapping information in the superblock; the address mapping information stores a mapping relationship of a physical block address to a logic block address (S); when data is written into the superblock, the address mapping information corresponding to the data is also written into the superblock (S); when a system is recovered, a page table of the storage system is recovered according to the address mapping information of the superblock; the page table marks a mapping relationship of a logic block address to a physical block address (S). The above technical solution can ensure a complete recovery of the page table during startup, as well as ensure a normal operation of the storage device when started.