Power saving mode hybrid drive access management
US9626126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid drive includes multiple parts: a performance part (e.g., a flash memory device) and a base part (e.g., a magnetic or other rotational disk drive). A drive access system, which is typically part of an operating system of a computing device, issues input/output (I/O) commands to the hybrid drive to store data to and retrieve data from the hybrid drive. The drive access system supports multiple priority levels and obtains priority levels for groups of data identified by logical block addresses (LBAs). The LBAs read while the device is operating in a power saving mode are assigned a priority level that is at least the lowest of the multiple priority levels supported by the device, increasing the likelihood that LBAs read while the device is operating in the power saving mode are stored in the performance part of the hybrid drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.