Virtualisation

Virtualisation

1. Traditional Method, Individual PC's are used to isolatation

   • H/W & S/w = 1:1

2. Virtual Machines, Multiple virtual machines implement isolation

   • H/W & S/w = 1:N
   • Share Underlying Resources
     • Separated VM's don't communicate unless authorised
   • VM's Preferred over TM's
     • Easy Relocation and Cost Effective
     • Implies Consolidation and Isolation
     • Increases H/w Availability through different virtualisation methods
       • CPU Virtualisation
       • Host memory Virtualisation
       • Virtual Networking
         • Virtual Switch
       • Storage Virtualisation
     • Encapsulation: VM and the necessary H/w
       • Files Created / Required by VM
         • Bios : nvram, Configration : vmx, Disk Descriptor: vmdk
     • How To Create VM's
       • EXSI Bare Metal vSphere Hypervisor
         • Controls CPU, Network and Storage
         • Exsi 6.0
           • 480 CPU/ host
           • 12TB RAM/host
           • 2048 VM's / host
         • Runs at Native Speed