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
Flood protection apparatus and container data center including the same
Systems and methods for optimizing capital structure of a financial institution
Crowd validated internet document witnessing system
Substantially aligned boron nitride nano-element arrays and methods for their use and preparation
Sensor packages and method of packaging dies of differing sizes
Sheet coil type resolver
Video stabilization
  Randomly Featured Patents
Contra-rotating bearing device for contra-rotating propeller
Stackable electrical panel modules
Angular velocity sensor and electronic device
Method and device for rendering an image for a staggered color graphics display
Portable diagnostic handset
Method for performing SUPL based location service
Multiple nail design label sheet
Adaptive compensation circuit for moving data storage media
Hierarchical test system architecture
Telephoto lens system