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Roll-forward checkpointing scheme: a novel fault-tolerant architecture

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2 Author(s)
Pradhan, D.K. ; Dept. of Comput. Sci., Texas A&M Univ., College Station, TX, USA ; Vaidya, N.F.

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

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Computers, IEEE Transactions on  (Volume:43 ,  Issue: 10 )