Virtualization

Virtualization

1. What is it?

   • Simulation of a real OS (with isolated subset of resources)

2. Benefits

   • Security: low risks
   • Resource Efficiency
   • Less/no Downtime
   • Low Cost
   • Simplicity

3. Challenges

   • Organisation
   • Security: risks have high impact
   • Management

4. Types

   • Type 1: bare metal
     • Directly on top of Hardware
       • Better Performance
   • Type 2: hosted
     • On top of another OS
       • Better Personal experience

5. Cloud + Virtualization

   • Benefits
     • Scalability
     • agile
     • flexible
     • management

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