Disk drive apparatus and control method thereof
US6567886B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Feb 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0676
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk drive apparatus and control method thereof that enable the latency that may occur in a multi-drive environment to be prevented, and performance to be improved.A microprogram is provided that includes a queue handler that stores commands issued by the host in a queue area, performs reordering and determines the command to be executed, and requests execution of the determined command; an interface handler that executes interface-side processing, including data transfer between the host and the drive apparatus by means of a command for which execution has been requested; and a drive handler that executes drive-side processing by means of a command for which execution has been requested, and requests the drive apparatus to perform read/write operations relating to command execution; interface-side processing and drive-side processing are separated with regard to command processing, and interface-side processing does not affect the start of drive-side processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.