Technique for sharing hot spare drives among multiple subsystems
US5941994A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1833
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system that includes an improved architecture for providing hot spare storage devices. Specifically, the data processing includes a bus that is connected to one or more computer systems and a number of storage subsystems. Each storage subsystem includes storage devices and a controller. The controller in a storage subsystem provides the connection to the bus and an interface for controlling data transfers to and from the storage device. A backup storage system is connected to the bus. The data processing system also includes a detection means for detecting a failure of a storage device within one of the plurality of storage subsystems and a backup means for using the backup storage device to replace the failed storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.