Resources Contact Us Home
Real time cloning of a virtual machine

Image Number 2 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
Real-time pricing of shipping vendors
Data feed management
Event-triggered server-side macros
Etching apparatus and methods
Integrated circuit package system with bonding lands
System, method, and computer program product for determining whether an electronic mail message is compliant with an etiquette policy
Light emitting device
  Randomly Featured Patents
Method and apparatus for image interpolation based on adaptive polyphase filters
Coating a heat curable liquid dielectric on a substrate
System and method for image and video segmentation by anisotropic kernel mean shift
Network management system displaying static dependent relation information
Challenge response-based device authentication system and method
Cyclic motilin receptor antagonists
Electric circuit for reducing harmonic currents
Connector for flexible printed circuit
Mixture of alkyl-phenyl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparation
Clutch mechanism