Server virtualization induces the appearance of inactive virtual machine.
Server virtualization has become widespread in infrastructure, the ease of creating virtual machines offers many advantages ( agility, security, etc. ). But the appearance of a greater number of virtual machines is a problem, because through a good number of them, some are unnecessary.
The detection of these machines is difficult, particularly since unsolicited Machine by users will still have RAM CPU activities. It is complex to identify these virtual machine which are embedded in the mass.