As already discussed, students may perform actions on the
virtual machine that they should not perform on a physical machine as these actions pose a threat to the availability and stability of the physical machine.
In
virtual machine monitor layer, the problem will be solved easily if all the memory nodes can be formed into a logical view.
"A heuristic placement selection of live
virtual machine migration for energy-saving in cloud computing environment," PLOs One, 9(9): e108275.
In the first round placement, each of the components randomly select a
virtual machine from an allowed
virtual machine table for deployment with each round of deployment calculating all choice probabilities [P.sub.ij] between components and
virtual machines according to formula (4), deploying each component to
virtual machine accordance with the size of [P.sub.ij].
In addition to fewer resources, massive data growth coupled with the expanding number of
virtual machines is leading to an ever larger and more consolidated amount of data that must be managed and protected.
In this module, the user can perform administrative tasks, such as editing
virtual machine configuration, viewing logs, and creating topologies to be sent to the clients.
An operating system image, preconfigured for labs and equipped with security tools, can run as a
virtual machine. Students remotely access the virtual lab environment, load a preconfigured operating system image, run it as a
virtual machine, complete a lab assignment and exit the system.
The Storage Live Migration feature allows administrators to reduce downtime and improve storage efficiency and utilisation by dynamically moving
virtual machine disk images between storage arrays without requiring any downtime.
Instead of using the aforementioned software to remove or prevent changes to a computer, virtualized platforms offer the ability to make snapshots, or point-in-time captures of a
virtual machine. Were a student to negatively alter the state of a
virtual machine, the network administrator could restore the machine to a working state by reverting to the most recent snapshot.