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
Pre and post-paid real time billing convergence system
Image pickup device with a plurality of pixels and an AD conversion circuit
Method for transmitting an electronic short message to multiple receivers
Press nut
Creating and manufacturing documents that initially exceed equipment finishing capacity
Mechanisms for marking the orientation of a sawed die
  Randomly Featured Patents
Polyethylene compositions and films formed thereform having improved moisture vapor transmission rates
Fluted sleeve hip prosthesis for modular stem
Operating device for thread guide rails in crochet galloon looms
Method for training of auditory/visual discrimination using target and foil phonemes/graphemes within an animated story
Coanda nozzle dryer
Semiconductor integrated circuit
Dual-functional massage bar used in bath
Rectangular seal beam lamp unit
Random signature island circuit
Simultaneous pipe cutter-sizer