Two-level storage device with faster front end
US10056147B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2017 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | May 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5643
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device includes a first data storage medium having a first capacity and a first speed, a second data storage medium having a second capacity and a second speed, and a device controller for interfacing between the data storage device and a host system. The second capacity is greater than the first capacity and the second speed is slower than the first speed. The device controller presents the data storage device to the host system as having a device capacity at least equal to the second capacity and a device speed at least equal to the first speed. The first data storage medium may be a solid-state drive while the second data storage medium is a hard disk drive. The device controller may be a solid-state drive controller, or a hard disk drive controller that may accept at least one solid-state drive command, such as a TRIM command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.