University of Cambridge > Talks.cam > Computer Laboratory NetOS Group Talklets > Fault Tolerance using Live Execution Replay in Virtual Machines

Fault Tolerance using Live Execution Replay in Virtual Machines

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This talk is about using virtual machines to achieve tolerance to hardware faults by replaying live execution. Our system consists of a master virtual machine and a set of slaves which are at a synchronized state and execute the instructions independently of one another. The overall output of the system is determined as a result of an voting process by the individual virtual machines. We use an instruction stream synchronizer to accurately transmit and execute the instruction on the set of VMs. The system is still being built and is hence not yet evaluated. The talk is more about the experiences that we have had so far in building the system.

This talk is part of the Computer Laboratory NetOS Group Talklets series.

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