Virtualization

Virtualization

1. Benefits

   • Minimized or eliminated downtime
   • efficient means of development
   • increase IT agility, flexibility
   • efficiently manages outages

2. Defination

   • It is the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, storage devices, and computer network resources.

3. Challenges

   • Lack of application awareness
   • Additional, unanticipated costs—the virtual solution costs more than the physical problem

4. Drawbacks

   • It creates a security risk
   • Creates a Scaliability issue
   • High cost of implementation

5. Types

   • Hardware Virtualization
   • Network Virtualization.
   • Storage Virtualization.
   • Administrative Virtualization
   • Application Virtualization.

6. Hypervisors

   • Def. A hypervisor, also known as a virtual machine monitor or VMM, is software that creates and runs virtual machines (VMs).
   • Types
     • Bare metal
       • Retains control over hardware
     • hosted
       • runs as a software layer on an operating system, like other computer programs.

7. Cloud+Virtualization

   • high speed
   • pooling of resources
   • automatic software updates