High availability processor based systems
US6697973B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1441
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor based system, such as a Personal Computer (PC), server, router, word processor or like devices, includes circuit arrangement that monitors the processor for a heartbeat pulse. If the heartbeat pulse is not sensed within a specified time interval the circuit arrangement issues a Soft Reset signal (Unmasked Interrupt) that causes the microprocessor to execute a program that logs the current state of selected entities within the system and a Hard Reset Pulse that resets the system hardware. The log can be used to identify the cause of a problem, whereas the Hard Reset causes the system to reboot and continue normal operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.