Resources Contact Us Home
Real time cloning of a virtual machine

Image Number 10 for United States Patent #8151263.

Method and systems for real-time cloning of a virtual machine are described. A virtual machine is running and a clone of the virtual machine is created while the virtual machine continues to run. In one embodiment, the creation of the clone further comprises quiesceing the virtual machine, taking a snapshot S1 (excluding main memory) of the state of the virtual machine, and creating a copy S2 of the snapshot S1. The original VM continues execution off the snapshot S1. The cloned VM restores from snapshot S2. In another embodiment, the cloning of the virtual machine further comprises instructing a vmkernel associated with the virtual machine to mark all pages of main memory of the virtual machine as copy-on-write (COW). The unique ID corresponding to the main memory is provided by the vmkernel and an association between the unique ID and the main memory is made upon restoration of the clone.

  Recently Added Patents
Content distribution system, mobile communication terminal device, and computer readable medium
Change management automation tool
Over the counter medicinal container with surface ornamentation
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
Monolithic widely-tunable coherent receiver
Dynamic rebasing of persisted time information
Laser marking of a card
  Randomly Featured Patents
Chimeric peptides for neuropeptide delivery through the blood-brain barrier
Dryer felts
Electronic percussion
Device for transmitting and receiving DVI video over a single fiber optic interconnect
Charge recycling amplifier for a high dynamic range CMOS imager
Interconnect structure to reduce stress induced voiding effect
Water-based flushing for paints and other coatings
Machine for packing stacks of disc-shaped articles inside rigid cylindrical containers
Page open hint in transactions
Methods and apparatus for unlocking an electronic device