Method and apparatus for fault tolerant BIOS addressing
First Claim
Patent Images
1. A method for providing a fault tolerant power-on of a computer system having a stored primary power-on system level configuration program, comprises the steps of:
- accessing said primary power-on system level configuration program storage location;
performing a first check-sum calculation on said primary power-on system level configuration program;
executing said primary power-on system level configuration program to enable said computer system operations if said first check-sum operation indicates no failure in said primary power-on system level configuration program;
automatically accessing a secondary power-on system level configuration program storage location if said first checksum operation indicates a failure in said primary power-on system level configuration program data, and automatically notifying a system operator of said failure in said primary power-on system level configuration program;
performing a second check-sum calculation on said secondary power-on system level configuration program; and
executing said secondary power-on system level configuration program to enable said computer system operations if said second check-sum operation indicates no failure.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus is described to provide a fault tolerant power-on of a computer system, using a BIOS memory containing a primary power-on system level configuration program for a computer system and a separate memory which contains a subset of the primary power-on system level configuration program. The subset program is accessed automatically, without human intervention, responding to a checksum detector of the BIOS memory data.
-
Citations
4 Claims
-
1. A method for providing a fault tolerant power-on of a computer system having a stored primary power-on system level configuration program, comprises the steps of:
-
accessing said primary power-on system level configuration program storage location; performing a first check-sum calculation on said primary power-on system level configuration program; executing said primary power-on system level configuration program to enable said computer system operations if said first check-sum operation indicates no failure in said primary power-on system level configuration program; automatically accessing a secondary power-on system level configuration program storage location if said first checksum operation indicates a failure in said primary power-on system level configuration program data, and automatically notifying a system operator of said failure in said primary power-on system level configuration program; performing a second check-sum calculation on said secondary power-on system level configuration program; and executing said secondary power-on system level configuration program to enable said computer system operations if said second check-sum operation indicates no failure. - View Dependent Claims (2, 3, 4)
-
Specification