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Published in:
2013 | OriginalPaper | Chapter
Using Virtualization Technology for Fault-Tolerant Replication in LAN
Authors : Fernando Dettoni, Lau Cheuk Lung, Aldelir Fernando Luiz
Published in: New Results in Dependability and Computer Systems
Publisher: Springer International Publishing
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We present an architecture and an algorithm for Byzantine fault-tolerant state machine replication. Our algorithm explores the advantages of virtualization to reliably detect and tolerate faulty replicas, allowing the transformation of Byzantine faults into omission faults. Our approach reduces the total number of physical replicas from
3f+1
to
2f+1.
Our approach is based on the concept of twin virtual machines, where there are two virtual machines in each physical host, each one acting as a failure detector of its twin.