Why Network Virtualization
What is virtualization, how we can do the virtualization and willdescribe important reason for adopting Virtualization in this article. Today, virtualization technology can help businesses create a more efficient, higher manageability resource allocation more flexible data center.
What is virtualization?
Virtualization is away of creating of virtual version of some operating system and other devices like routers switches etc. In virtualization you can run multiple virtual machines, virtual routers on single hardware machine and can simulate any network design. There are some famous virtualization software which include:
– VM Ware
– Virtual Box
– Hyper-V by Microsoft
– Virtual PC
– GNS3 for simulating cisco and juniper devices (gns3 labs)
Benefits of virtualization:
The five most important reasons for adopting virtualization software:
1. ServerConsolidation and Infrastructure Optimization:
Virtualization allows for a significant resource utilization increased by pooling common infrastructure resources and overcoming the inherited model of “one application to one server”.
2. CostReduction of physical infrastructure with virtualization:
Since you can install multiple operation systems in single hardware machine using virtualization thus you can reduce the number of servers and hardware in your Data Center. This helps an enterprise to reducecost of requirements estate, power and cooling.
3. Flexible and improved operational responsiveness:
Virtualization provides a new way of managing IT infrastructure and helps IT managers to spend less time on repetitive tasks such as provisioning, configuration, monitoring and maintenance.
4. Major application availability and improved business continuity:
Eliminate planned downtime and recover quickly from unplanned outages.Also migration in virtual environments is also easy you can perform migration in virtual environmentwith no interruption in services.
5. Virtual environment is accessible:
You canmanage access and monitor protected desktop virtual environments from locally or remotely, with or without a network connection, from almost any desktop, laptop or tablet PC.
How does virtualization?
Basically, virtualization lets you transform hardware into software. Using virtualization software such as VMware or Virtual Box to transform or “virtualize” the hardware resources of an machine, including CPU, RAM, hard disk and network controller, to create a fully functional virtual machine that can run its own operating system and applications the same way as a computer “real”.
Multiple virtual machines share hardware resources without interfering with each other so that you can run simultaneously and securely multiple operating systems and applications on a single computer.
When you run VMware on some hardware it creates a software layer,that contains a virtual machine monitor or “hypervisor” that allocates hardware resources dynamically and transparently, to run multiple operating systems simultaneously on a single physical computer without even realizing it.
However, the virtualization of a single physical computer is just the beginning. VMware offers a robust virtualization platform that can be extended by hundreds of storage devices and interconnected physical computers to form an entire virtual infrastructure.