Data storage device executing host access commands in a manner to optimize performance and reduce energy costs
US12300283B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2024 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Jan 11, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device executes access commands received from a host by a recording head actuated over a magnetic storage medium. A target command is selected from queued host access commands. A free command is selected that can be executed during a time required for a seek from the recording head location to a target command location. A seek energy difference between the energy required to seek from the recording head location to a free command location to the target command location, and to seek from the recording head location directly to the target command location is determined. The device seeks to and executes the free and target commands if the seek energy difference is less than a threshold, and seeks directly to the target command if the seek energy difference is greater than the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.