Introduction
Virtualizatio is used so that you can use more than one virtual system on a single physical machine.
It can make better use of your hardware and save some money.
Widely used in cloud computing, data centers and server management.
Assists in separation of concerns, flexibility and predictability of resource sharing.
Integrated mix and match – key for efficient IT Infrastructure, as well as scalable environments.
Definition
Virtualization is a technology that enables virtual representations instead of real, physical ones — servers, storage devices, network resources, and even an operating system are examples. It makes possible to run multiple independent environment on a single physical machine with the help of a software called hypervisor actually, which results in better usability of resources, flexibility and effectively manageable.
Main Explanation
Working
- The hypervisor is the layer between hardware and OSs.
- It partitions physical resources into several virtual machines (VMs).
- And each VM hosts its own OS and applications, of course.
- Both CPU, RAM and storage are shared dynamically.
- Resources are provisioned by the hypervisor as they are required.
- VMs are separated from each other for security and stability reasons.
- = add/delete/move VM with ease.
- Enables efficient hardware utilization.
Types
Server Virtualization – it is a server that is turned into many with only one physical server.
Desktop Virtualization – Allows remote running of virtual desktops.
Storage Virtualization – a technique to unify physical disaster recovery two or more discrete storages into an interconnected storage pool.
Network Virtualization – virtual networks are set up, not bound to particular hardware.
OS Level Virtualization – containers have the same OS Kernel.
Application Virtualization – applications are allowed to run independent of the OS.
Hardware Virtualization – whole hardware is emulated for Vms.
Steps / Process
- Put a hypervisor on the metal.
- Set up CPU, memory and storage provision.
- DEFINE VM TEMPLATES Building Virtual Machine TemplatesAntiForgeryToken.
- Install the OS on every virtual machine.
- Configure virtual networking and storage.
- Run applications within the VMs.
- Continuous monitoring and adjustment of resources according to workload.
- Restore and Manage VMs as necessary.
Advantages
- Better utilization of hardware resources.
- Cuts down on hardware and power costs.
- Create, manage and scale VMs with ease.
- Delivers separation and protection from one environment to another.
- Supports backup, recovery, and migration.
- Enhances flexibility and testing capabilities.
Disadvantages
- The virtualization layer introduces overhead on performance.
- Requires skilled administrators for configuration.
- Hardware failure affects multiple VMs.
- Licensing and administrative overhead may rise.
- Security Risks of a Compromised Hypervisor.
Applications
- Cloud computing and hosting services.
- Server consolidation in data centers.
- Software testing and development environments.
- Using an old program on a brand-new computer.
- Disaster recovery and backup systems.
- Virtual desktops for remote access.
- Network simulation and training.
- Isolated application deployment.
Conclusion
Virtualization allows to share properly the computational resources of a set of machines, while executing multiple isolated virtual systems on top of them. It provides flexibility, scalability, and cost savings for large data centers and the most demanding workloads. Its extensive uses can demonstrate its value for making administration more easily and system running more smoothly.