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
Apparatus and method to simulate a power trip to a disk drive
Case for electronic device
Catecholic butanes and use thereof for cancer therapy
AIN buffer N-polar GaN HEMT profile
Reproducible dither-noise injection
Method of and apparatus for recording motion picture, which generate encoded data with higher compression efficiency using a motion vector similarity
Electric connection box
  Randomly Featured Patents
Semiconductor package for improving characteristics for transmitting signals and power
Heptanonic acid and furanone compounds and compositions
Ribbon cable connector with ground bus
Fault analysis apparatus, fault analysis method, and recording medium
Use of 1,4-disubstituted-piperidinyl compounds in the manufacture of a medicament for the treatment of insomnia
Power semiconductor device
Packaging and storage container
Uninterruptible power supply apparatus
Towing device
Vehicle mirror