Duplex disk controller
US6684307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Jun 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk device controller (1) performs reading/writing of data and management information from/to a first disk device (4) and a second disk device (5). The first disk device (4) and the second disk device (5) hold their device information and storing the management information and the data from the disk device controller (1). A reference device information holder (3) holds previously set reference device information peculiar to the device. A master disk decider (2) decides which one of the first disk device (4) and the second disk device is the master disk, based on the device information and the management information held in the first disk device (4) and the second disk device (5), and the reference device information held in the reference device information holder (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.