Virtualisation

Virtualisation

1. Definition

   • Organise hardware to sets
   • By creating virtual layer
   • Done by creating vm

2. Uses

   • max utilisation
   • Various os on one machine
   • Simultaneous
   • Isolated

3. Applications

   • Used in cases where multiple machine are needed
   • Cloud Computing
     • On demand resources
       • Benefits
         • Scalability
         • Easy collaboration
         • Cost efficient for startups
         • Easy management
   • Running critical Apps without affecting host os

4. Challenges

   • Distribution
     • Underuse of resources
     • Uneven distribution
   • Security
     • Backup to store vm data
     • Hyper Jacking
     • Guest hopping
   • Stability
   • Uncheck growth of vm

5. Hypervisors

   • Bare Metal
     • Direct
       • Harder to set up
         • More efficient
           • More speed
             • VM WARE
             • Virtual Box
   • Hosted
     • On Host OS
       • Easy to setup
         • Less efficient
           • Less speed due to added layer
           • Xenserver
           • Hyper-V