virtualization

virtualization

1. DEFINITION: Virtualization refers to the creation of a virtual resource such as a server, desktop, operating system, file, storage or network.

2. BENEFITS

   • Slash your IT expenses
   • Reduce downtime and enhance resiliency in disaster recovery situations
   • Increase efficiency and productivity
   • Control independence and DevOps

3. DRAWBACKS

   • It can have a high cost of implementation.
   • It still has limitations.
   • It requires several links in a chain that must work together cohesively.

4. CHALLENGES

   • Depleted resources—performance and availability suffer
   • Lack of application awareness— OS virtualization doesn’t virtualize the application

5. TYPES OF HYPERVISER

   • TYPE1
     • Hosts hardware
     • VM ware ESXi
     • Critix senserver
   • TYPE2
     • Top of an operating system
     • VMware server
     • Microsoft virtual pc

6. Virtualization in cloud environment

   • protection from system failure
   • Firewall and security
   • Smoother operating system