virtualization

virtualization

1. BENEFITS

   • REDUCE IT EXPENCES
   • INCREASED RESONSIVENESS
   • SIMPLIFIED INFRASTRUCTURE
   • RECOVERY IS EASY

2. TYPES OF HYPERVISORS

   • TYPE 2
     • hypervisors run on a host operating system that provides virtualization services
     • EXAMPLES
       • ORACLE VIRTUALBOX
       • MICROSOFT VIRTUAL PC
       • VMWAre WORKSTATION
   • TYPE 1
     • RUNS DIRECTLY ON THE SYSTEM HARDWARE
     • EXAMPLES
       • VMWare VsXi
       • KVM
       • CITRIX XEN SERVER

3. DEMERITS

   • HIGH COST OF IMPLEMENTATION
   • DATA AT SECURITY RISK
   • TIME CONSUMING
   • QUICK SCALABILITY IS A CHALLENGE

4. WHAT IS VISTUALIZATION

   • Virtualization uses software to create an abstraction layer over computer hardware that allows the hardware elements of a single computer—processors, memory, storage and more—to be divided into multiple virtual computers, commonly called virtual machines

5. CHALLENGES IN VIRTUALIZATION

   • BACKWARD COMPATIBILITY
   • VM SPRAWL
   • RESOURCE DISTRIBUTION
   • PERFORMANCE MONITORING

6. CLOUD VIRTUALIZATION

   • BENEFITS
     • PROTECTION FROM SYSTEM FAILURES
     • SMOOTHER IT Ops
     • COST EFFECTIVE
     • HASSLE-FREE DATA TRANSFERS