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<p>We propose a novel architecture for a fault-tolerant multiprocessor environment. It is assumed that the multiprocessor organization consists of a pool of active processing modules and either a small number of spare modules or active modules with some spare processing capacity. A fault-tolerance scheme is developed for duplex systems using checkpoints. Our scheme, unlike traditional checkpointing schemes, requires no rollbacks for recovering from single faults. The objective is to achieve performance of a triple modular redundant system using duplex system redundancy.</p>
multiprocessing systems; fault tolerant computing; redundancy; roll-forward checkpointing scheme; fault-tolerant architecture; multiprocessor environment; active processing modules; triple modular redundant system; duplex system redundancy.
N.H Vaidya, D.K. Pradhan, "Roll-Forward Checkpointing Scheme: A Novel Fault-Tolerant Architecture", IEEE Transactions on Computers, vol. 43, no. , pp. 1163-1174, October 1994, doi:10.1109/12.324542
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