Data storage device sorting access commands based on peak current for multiple actuators
US10930310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2020 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Feb 4, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device comprising a first actuator configured to actuate a first head over a first disk surface, and a second actuator configured to actuate a second head over a second disk surface. A plurality of access commands are received from a host, and a cost metric is computed for executing a seek to execute each access command of the plurality of access commands, wherein the cost metric is based on an access latency of the seek, a power consumption of the seek, and an estimated combined current draw of the first and second actuators during the seek. The access commands are sorted into an execution order based on the cost metrics computed for the access commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.