Storage device that determines write area of read reclaim operation based on estimated read count of reclaim area and operating method of the storage device
US11508451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Dec 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage device includes a nonvolatile memory device that includes a first storage area and a second storage area. A controller of the storage device controls the nonvolatile memory device and performs a read reclaim operation of reading data stored in the first storage area of the nonvolatile memory device and writing the read data in the second storage area. In the read reclaim operation, the controller is further configured to allow the nonvolatile memory device to perform sample read operations on the first storage area and to determine locations of the second storage area, at which the data are to be written, based on results of the sample read operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.