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FAULT-TOLERANT REPLICATION ARCHITECTURE

  • US 20130036323A1
  • Filed: 03/28/2012
  • Published: 02/07/2013
  • Est. Priority Date: 03/28/2011
  • Status: Active Grant
First Claim
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1. A fault-tolerant replication system, comprising:

  • a first machine running a first hypervisor;

    a second machine that is failure-independent of the first machine, running a second hypervisor;

    a first storage device within or in communication with the first machine storing code representing a first plurality of virtual machines;

    a second storage device within or in communication with the second machine storing code representing a second plurality of virtual machines;

    wherein each of the virtual machines of the first and second plurality of virtual machines constitutes either a virtual machine replica server of a fault-tolerant replicated state machine or a backup corresponding to a virtual machine replica server of the fault-tolerant replicated state machine and every backup is embodied on a different machine, of the first and second machines, from its corresponding virtual machine replica server.

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