Virtualization

Virtualization

1. Virtualization is the act of creating a virtual version of something, including virtual computer hardware platforms, storage devices, and computer network resources.

2. Benefits

   • Cost reduction
   • Automation
   • Responsiveness
   • Decoupling
   • Agility

3. Challenges

   • Attacks on virtualization infrastructure
   • Capacity Planning
   • Performance monitoring
   • License issues
   • Managing VM Sprawl

4. Drawbacks

   • It can have a high cost of implementation.
   • It creates a security risk
   • It creates an availability issue
   • It creates a scalability issue

5. Virtualization in Cloud Computing

   • Terminologies
     • Hypervisor
     • Container
     • Virtualization Software
     • Virtual Network
   • Benefits
     • Less overhead
     • Increased portability
     • More consistent operation
     • Greater efficiency
     • Better application development

6. Hypervisor

   • Type 1
     • A bare-metal hypervisor.
       • Most efficient and best performing
       • - Doesn't have to fight an OS
       • Complete control over hardware
   • Type 2
     • Hosted hypervisor
       • To create virtual desktops
       • Run native processes alongside VMs
       • Familiar environment
       • Avoid code duplication