Patent · US Active

Systems and methods for multi-zone data tiering for endurance extension in solid state drives

US10691531B2 · kind B2 · utility

3Cited by

5References

23Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Ashish Singhai · Los Altos, US
Vijay Karamcheti · Los Altos, US
Ashwin Narasimha · Sunnyvale, US

Key dates

Filing date	Dec 4, 2014
Grant date	Jun 23, 2020
Priority date	—
Expiry date	Dec 8, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/152
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Systems and methods for increasing the endurance of a solid state drive are disclosed. The disclosed systems and methods can assign different levels of error protection to a plurality of blocks of the solid state drive. The disclosed methods can provide a plurality of error correction mechanisms, each having a plurality of corresponding error correction levels and associate a first plurality of blocks of the solid state drive with a first zone and a second plurality of blocks of the solid state drive with a second zone. The disclosed methods can assign a first error correction mechanism and a first corresponding error correction level to the first zone and can assign a second error correction mechanism and a second corresponding error correction level to the second zone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.