Solid-state hard disk and data access method for use with solid-state hard disk
US10810127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Solid-state drives (SSD) and a data access method for SSD are provided. The method includes the following. Cache acquired data-to-be-written to a preset write cache module. Rank the data-to-be-written in the write cache module according to a least recently used page (LRU) algorithm. When data storage amount of the write cache module reaches a preset value, determine a preset number of replacement data among the infrequently used data-to-be-written according to a preset cache replacement algorithm. Write the replacement data into a flash memory of the SSD. Implementations of the present disclosure can decrease effectively the number of times of rewriting on a flash memory of the SSD, thereby reducing effectively a write amplifying problem of the SSD during data access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.