Architecture for vital data management in a multi-module machine and process for implementing an architecture of this type
US6434679B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/182
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an architecture for management of vital data in a multi-module digital data processing machine (1) and the process for its implementation. Each module (M1 through Mn) comprises a physical nonvolatile memory (NVM1 through NVMn) in which vital data is stored. A first area (G1 through Gx) stores global vital data obtained by copying and associated with the operation of the machine (1). A second area (L1 through Lx) stores local vital data associated with the operation of the module (M1 through Mn). A virtual nonvolatile memory in two parts, global memory and local memory divided into windows, makes it possible, under the control of an extension of the operating system, to address the physical nonvolatile memories (NVM1 through NVMn). The windows of a defective module (M1 through Mn) are not visible. At the startup, a specific firmware determines the state of the modules (M1 through Mn). After that, the integrity of the vital data is under the control of the extension of the operating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.