Storage devices having minimum write sizes of data
US11537510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | May 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7207
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure generally relates to methods of operating storage devices. The storage device comprises a controller and a storage unit divided into a plurality of streams. The storage unit comprises a plurality of dies, where each die comprises two planes. One erase block from each plane of a die is selected for stream formation. Each erase block comprises a plurality of wordlines. A stream comprises one or two dies dedicated to storing parity data and a plurality of dies dedicated to storing user data. The stream further comprises space devoted for controller metadata. The storage device restricts a host device to send write commands in a minimum write size to increase programming efficiency. The minimum write size equals one wordline from one erase block from each plane of each die in the stream dedicated to storing user data minus the space dedicated to metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.