Remus : High Availability via Asynchronous Virtual Machine Replication. Nour Stefan, SCPD. Introduction Related work Design Implementation Evaluation Future work Conclusions. Introduction. Highly available systems
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Checkpointing a running virtual machine many times per second places extreme demands on the host system.
Remus addresses this by aggressively pipelining the checkpoint operation
epoch-based system in which execution of the active VM is bounded by brief pauses in execution in which changed state is atomically captured, and external output is released when that state has been propagated to the backup