virtualization

virtualization

1. defination

   • creating virtual resources like server/os

2. benefits

   • cheaper
   • cost predictable
   • energy saving
   • greater flexibility

3. challenges

   • security
   • Managing VM Sprawl
   • attacks on virtualization features
   • Compliance Challenges
   • Management Challenges
   • license issue

4. drawbacks

   • high limitations
   • security risk
   • scalability issue
   • time consumption

5. types

   • type 1 hypervisor
     • bare metal hypervisor
     • runs on host hardware
     • host hardware to control guest os
     • defination
       • runs directly on underlying host system, It has direct access to hardware resource
   • type 2 hypervisor
     • runs on conventional os
     • host os hypervisor
     • defination
       • run as an application in a host system