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Increasing Safety and Reliability of Roll-back and Roll-forward Lockstep Technique for Use in Real-time Systems

机译:用于实时系统的回滚和前滚锁步技术的安全性和可靠性不断提高

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Abstract: This work focuses on the roll-back and roll-forward lockstep architecture that are techniques to detect faults like SEU, voltage dips or another impacting to system misbehaviour. These techniques are explored using FMEA analysis and on its basis, some propose is presented that improves reliability and safety of each technique. In this case, availability is lowered as a trade of higher reliability and safety. These techniques are also explored from the point of view using in real-time systems. On this basis, some recommendations of appropriate checkpointing in lockstep roll-back technique is presented.
机译:摘要:这项工作着重于回滚和前滚锁步架构,这是一种检测SEU,电压骤降或其他对系统不正常行为产生影响的故障的技术。使用FMEA分析来探索这些技术,并在其基础上提出一些建议,以提高每种技术的可靠性和安全性。在这种情况下,由于可靠性和安全性的提高,可用性降低了。从实时系统的角度出发,还探讨了这些技术。在此基础上,提出了在锁步回滚技术中适当检查点的一些建议。

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