Checkpointing mechanism for fault-tolerant systems

Details Checkpointing mechanism for fault-tolerant systems Checkpointing mechanism for fault-tolerant systems

1991-01-16

1993-08-10

Canney, Vincent P.

Excavating

371 91, 371 113, G06F 1116

Patent

active

052357007

ABSTRACT:
A device which switches data processing from an active processor, about to fail, to a back-up processor includes a memory change detector which captures memory changes in the memory of the active processor and a mirroring control circuit which causes the memory changes when committed by establishing recovery point signals generated by the active processor to be dumped into the memory of the back-up processor so that the back-up processor resumes operation of the active processor from the last established recovery point.

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