Allocation of overprovisioned blocks for minimizing write amplification in solid state drives
US11429521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for allocation of overprovisioned blocks for minimizing write amplification in solid state drives are disclosed. An example system comprises: a plurality of memory devices and a processing device operatively coupled to the memory devices, the controller configured to: determine a value of a data stream attribute associated with a data stream; determine, based on the value of the data stream attribute, an overprovisioning factor associated with the data stream, wherein the overprovisioning factor is calculated to provide a uniform distribution of valid translation unit counts (VTCs) across the data stream; and allocate, based on the overprovisioning factor, a plurality of overprovisioned blocks to the data stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.