Computer event log overwriting intermediate events
US7143317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Sep 26, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0787
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A service processor for a server system includes an event log that, once full, stores recent events by overwriting events of intermediate age so that the information required to diagnose both cascade errors and hangs are preserved. This contrasts with bottom-up buffers that discard recent events when full and with circular buffers that discard the oldest events when full. The event log can be reset by moving an exception region, that is, a region that is not overwritten by recent events. Alternatively, a partial reset can initialize an exception region (e.g., a bottom-up sublog), while a circular region or sublog continues to operate without being reset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.