Method of configuring memory cells in a solid state drive based on read/write activity and controller therefor
US10007458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2015 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5641
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A solid-state storage device (SSD) controller is provided for use with an SSD. The SSD includes a plurality of memory cells, such as non-volatile memory (NVM) cells. The SSD controller comprises a processor and a memory storing statements and instructions for execution by the processor to perform a method of configuring the memory cells. In a dynamic configuration implementation in which at least a subset of the NVM cells are configured in a first bit retention mode, the method includes: monitoring data activity in relation to the SSD; and dynamically reconfiguring the subset of the NVM cells in a second bit retention mode based on the monitored data activity, such as whether data traffic comprises a majority of read activity or write activity. In a static configuration implementation, the method includes receiving at least one performance characteristic for the NVM cells; and configuring the subset of the NVM cells in a first bit retention mode based on the received at least one performance characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.