Raid optimization method for multi-pass programing NAND, and computer device
US12287991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2022 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present application relates to a RAID optimization method and apparatus for Multi-Pass NAND programming, a computer device, and a storage medium. The method includes: obtaining a RAID optimization request for the Multi-Pass NAND programming; performing, by a RAID engine, encoding on cached user data of a corresponding RAID stripe during each Pass programming, according to the RAID optimization request of the Multi-Pass NAND programming; generating corresponding Parity data in real time through the encoding by the RAID engine; releasing a buffer area for storing the Parity after a corresponding Pass programming is completed, without waiting until all-Passes programming has been completed. According to the present application, aiming at a Multi-Pass programming scenario, RAID parity data is dynamically generated without buffering the corresponding parity data during each pass programming. The RAID parity data is generated in real time, so that a requirement on a memory of a SOC is reduced, a performance of a SSD is improved accordingly, and the cost is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.