Resources Contact Us Home
Real time cloning of a virtual machine

Image Number 10 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
Information recording medium and information processing method for accessing content with license or copyright protection
System and method for transferring data in storage controllers
System and method for multi-tiered meta-data caching and distribution in a clustered computer environment
Neuronal differentiation-inducing peptide and use thereof
Efficiently emulating computer architecture condition code settings without executing branch instructions
Information repository search system
2,2'-binaphthalene ester chiral dopants for cholesteric liquid crystal displays
  Randomly Featured Patents
Tissue expander
System for monitoring roll density
Mold for dentistry
Distributed threshold voltage field effect transistor
Miniature video cassette
Color filters for displays and methods for preparing same
Thermostat having a multiple color signal capability with single indicator opening
Method of packaging solid electrolytic capacitor having terminatons formed on cut surfaces of a resin encapsulant
Method for the combined reduction of nitrogen oxide and sulfur dioxide concentrations in the furnace region of boilers
Device for attaching a retaining member for an optical apparatus to a support