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
Nonvolatile semiconductor memory device and method for controlling the same
Processing data using information embedded in a data request
Method and apparatus for exercise monitoring combining exercise monitoring and visual data with wireless internet connectivity
Terminal device, system and computer readable medium
Methods and apparatus for power amplifier calibration
Nucleic acid sequences encoding strictosidine synthase proteins
  Randomly Featured Patents
Residue spreading apparatus for agricultural combines
Image forming apparatus having a plurality of laser elements
Tensile tester
Scum removal system for liquid treatment tank
Inhibitors of VEGF receptor and HGF receptor signaling
Round baler pickup having stiff teeth
Apparatus for time-interval measurement
Process for including functions of an automatic call distributor system in an interactive voice response system
Method and apparatus for fractional crystallization separation
Synthesis of tyrosine-derived diphenol monomers