System, apparatus, and method for managing a data storage system in an n-way active controller configuration
US6487680B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/85
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system, apparatus, and method for managing a data storage system in n-way active controller configuration, such that a controller can detect the failure of and reset more than just a single other controller. To accomplish this, a controller sends a ping message to at least a subset of the other controllers, and waits for any of the other controllers to respond to the ping message within a first predetermined amount of time. If any of the other controllers do not respond to the ping message within the first predetermined amount of time, it is determined that the non-responding controller has failed. The controller will reset any failed controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.