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
Weak acid recovery system for ethanol separation processes
Washing machine
Simulation tool for air traffic communications security
Methods and compositions for wound healing
Active matrix substrate, method for manufacturing same, and liquid crystal display apparatus
Bacterial superantigen vaccines
  Randomly Featured Patents
Infrared headphones for the hearing impaired
Organic luminescent display device having a semiconductor with an amorphous silicon layer
Integrated solid oxide fuel cell and fuel processor
Integrated circuit having a micromagnetic device including a ferromagnetic core and method of manufacture therefor
Method and system for abstracting non-functional requirements based deployment of virtual machines
Single chip pad oxide layer growth process
Defect-recognition processing apparatus
Closing device for fluid passage
Pump sprayer nozzle for producing a solid spray pattern
Bulb retainer for adjustable lamp assembly