System design and code update strategy to implement a self-healing, self-verifying system
US7409539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2005 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Oct 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1666
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to boot code processing of a computer system, and in particular to a method and respective system for managing boot code of a computer system, wherein the system comprises at least a first and a redundant second boot memory portion, and wherein the system is booted from one of said portions, referred to as the active booting portion, the other boot portion being in a stand-by mode and being referred to as inactive boot portion. In order to increase the robustness of a computer system against failures due to errors in boot code updates it is proposed to perform the steps of: a) booting the system from said first one (default) of said two boot memory portions; b) verifying the correctness of the boot procedure, if not correct; c1) re-booting from said second boot portion, and c2) replicating the boot code from the active boot memory portion to the non-active boot memory portion, if correct; d) replicating the boot code from the active boot memory portion to the non-active boot memory portion; e) run normal operation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.