Storage device, semiconductor memory device, and method for controlling same
US10049042B2 · kind B2 · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Sep 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/0483
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention improves an access performance in an SSD device in which a nonvolatile semiconductor, such as a NAND flash memory, is mounted, or in a storage subsystem having the SSD device built therein, and achieves longer operating life. For this purpose, a plurality of units (logical-physical sizes) for associating a logical address with a physical address is provided in the SSD device or the storage subsystem, and an appropriate logical-physical size is selected in accordance with an I/O size or I/O pattern accessed from a superior device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.