Systems, methods, and media for controlling background wear leveling in solid-state drives
US12223172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2022 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jan 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms for controlling background wear leveling are provided, including: increasing a first counter; comparing the first counter to a first threshold; and in response to the first counter meeting the first threshold: decreasing the first counter by a value of the first threshold; and triggering background wear leveling. In some embodiments, the first counter is increased in response to receiving a write trigger. In some embodiments, the first threshold is based upon a page size and a number of planes of physical media of an SSD. In some embodiments, the mechanisms further comprise: incrementing a second counter in response to receiving a host write trigger; comparing the second counter to a second threshold; and in response to the second counter meeting the second threshold, decreasing the second counter by the second threshold, wherein the increasing the first counter is performed in response to the second counter meeting the second threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.