Disk drive executing a preemptive multitasking operating system comprising tasks of varying priority
US7082494B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Apr 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0676
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed for executing a preemptive multitasking operating system comprising tasks of varying priority, including a disk task for processing disk commands by initiating seek operations and configuring parameters of a read/write channel, a host task for initiating disk commands in response to host commands received from a host computer, a background task for initiating disk commands to perform background operations including a defect scan of the disk, and an execution task for arbitrating the disk commands generated by the host task and the background task and for transmitting the arbitrated disk commands to the disk task.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.