What is a Virtual Machine?

Virtual machines (VMs) operate as virtual servers or computers, that can be hosted in the cloud and provide numerous advantages of on-demand resources at a budget-oriented price-point than purchasing an entirely new server or opting for the existing hardware like fully-powered workstations or enterprise servers.

A VM (Virtual Machine) has the ability to host numerous virtual servers, providing more incentives options for a business to go big and fast with their initial IT deployment to get immense value out of them.

Let us go through with some terms that are often associated with virtual machines: -

• Virtualization - Virtualization is the process of executing different virtual machines in another layer that is abstracted from the actual hardware.
• Hypervisor - A hypervisor is software that creates and runs virtual machines and supports multiple guest VMs by virtually sharing its resources.
• P2V (Physical-to-Virtual) - It is the act of migrating memory resources from a host machine to a virtual machine.
• Snapshot – An snapshot is the state of a virtual machine of any specific point. In a snapshot, you can save all the configurations, data, and programs.
• Clone – An exact copy of a virtual machine that can be moved to another VM.

Host and Guest

When you are committed to using virtualized resources, you first need to understand that your VM is considered a guest of your host machine. The host machine is typically a fully-powered server that is normally used to host your resources, with every virtual machine, whether it is a virtualized server or a virtualized desktop version (or something else), all are guests on the hosted machine. By installing multiple guest machines on one host machine, you can save a large amount of financial expense.

Uses of Virtual Machines

The virtual machine can be used for non-essential or for testing purposes, and it can also be rolled out to different computing processes that every business requires. VMs are dominantly utilized in running old versions of operating systems and resource testing that are required by legacy systems, software design, and testing, or centralizing servers within a business.

Some more popular uses cases of virtual machines in businesses include: -

• Checking Out a New OS (Operating System) – Directly installing a new OS on a virtual machine can incur costs that could lead to the hiring of technicians and administrators. Consider doing a prior requirement check for your business.
• Use Desktop as a Thin Client – Virtual desktop can turn into a PC (Personal Computer) with fewer resources into a productivity resource.
• Testing software – One of the most important benefits is that you can test new software before installing it to a large computing infrastructure.
• Consolidation – Nowadays, virtual machines are used more than ever. Today, virtual machine hosting allows organizations to roll out a single server and use it to host several virtual instances. This presents a great benefit for cost savings.

Business Advancement of Virtualization

• Virtualization, Implementation of virtual machines in organizations is not a new trend. Thankfully many small-scale businesses to medium-scale businesses are understanding about their potential that what virtualization can offer, especially when coupled with a hosted cloud service.
• Reduced Hardware Costs – In our experience most small-scale business servers are only utilizing 40 to 60% of their hardware resources so instead of buying another server, you can spin up a virtual server.
• Faster Desktop and Server Deployment – Put more time in uplifting your business model instead of managing your web servers and the data for your business. Deploying a new server can take a large time for server installation, dependency resolution, securing, managing policies, and resource optimization, as well as, installing the required software and services needed. With virtualization, you can deploy a virtual server in minutes using its secure pre-configured server templates.
• Small Footprint and Energy Saving – Kilowatts (KWs) add up, virtualization consumes less space and also reduces the office space that is needed to maintain and expand your IT infrastructure while freeing up desk space for your growing business to support your team of experts.
• Improved Data Security and Disaster Recovery – As per the Texas University study, 94% of companies are experiencing catastrophic data loss do not survive – 43% never reopen, and 51% are closed within two years. Virtualization also benefits disaster recovery by cloning your existing servers off-site in the cloud. Since VMs are independent of the underlying hardware, you don’t require the same physical servers offsite to facilitate a secondary recovery site. In any event of a disaster, your team can go back online in a few minutes with an easy and budget-oriented backup and disaster recovery solution.
• Portability and Migration – One of the major myth that falls between physical servers vs virtual servers is portability. You can easily move VMs across the different virtual environments and even from one physical server to another, with minimal input on your part. Since VMs are completely isolated from one another and have their own virtual hardware, this makes a virtual machine’s hardware-independent. Moving your physical server to another location is a more resource-intensive task. You need a copy of all data stored on the server to an external media, transport the media as well as all hardware resources to a new location, and then re-install all the system components on a new server. Essentially, you will have to rebuild a web server from scratch.
• IT Operational Efficiency – In a recent survey, more than 300 IT managers and senior business officials found a 73% significant improvement on time spent managing routine admin tasks by Vmware. Why? Simple – nine out of 10 IT departments spend at least half of their time managing their administrative tasks. You can operate, deploy, and manage multiple operating systems at once from a single physical server.

Conclusion

Small-scale businesses can take advantage of virtualization. If you are planning to upgrade your servers, which includes software and hardware, and when you are planning to add additional servers you should investigate whether virtualization is right for your business (hint: you’re probably ready). Generally, it is recommended organizations with only one or two servers should look at virtualization since administrative tasks like patching, upgrades, and migrations are a breeze across servers built with HyperV, or VMware.