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AUTOMATIC REPLICATION OF VIRTUAL MACHINES

  • US 20120084414A1
  • Filed: 12/02/2010
  • Published: 04/05/2012
  • Est. Priority Date: 10/05/2010
  • Status: Active Grant
First Claim
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1. A computer-implemented method of automatically replicating virtual machines across wide area networks, the method comprising:

  • selecting, from a plurality of secondary backend computing device, at least one secondary backend computing device for storing at least one replica of the first virtual machine for physical hosting of the first virtual machine image;

    monitoring, in a primary backend computing device, the first virtual machine image for any updates, where the update to the first virtual machine image creates a second virtual machine image;

    partitioning, in the primary backend computing device, the first virtual machine image into a set of first virtual machine image components, and the second virtual machine image into a set of second virtual machine image components;

    indexing, in the primary backend computing device, the first set of virtual machine image components into an index of stale virtual machine image components, and the second set of virtual machine image components into an index of active virtual machine image components;

    comparing, in the primary backend computing device, the set of active virtual machine image components to the set of stale virtual machine components to identify new active virtual machine image components, where the new active virtual machine image components are transmitted to the selected secondary backend computing device; and

    updating, in the selected secondary backend computing device, the at least one replica of the first virtual machine with the new active virtual machine image components, thereby replicating the second virtual machine image in the selected secondary backend computing device.

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