VMs are software systems that operate as completely independent computers within a hardware system. They utilize software called Hypervisors to separate hardware resources such as CPU, memory and storage. A virtual machine will operate a different OS for instance, Windows for business applications or Linux for software development.
Using virtual systems reduces the chance of system failure and allows you to quickly restore your data to an earlier point in time. You can also test and deploy new or legacy applications in a sandbox, to ensure that they perform in the way you expect, without disrupting production.
The ability to run multiple VMs on one physical server means you need less equipment and lower capital and operational costs. It also eliminates duplicate backup systems and reduces the amount of data you need to maintain. Cloud-based VMs let you access your data wherever you have an Internet connection, eliminating the need for offsite storage.
A VM can be used on any hardware that can meet the performance requirements of your company, which includes servers and desktops. The type of Hypervisor that is used is a crucial factor since each has its own pros and cons for small-sized businesses. VMware has vSphere and ESX/ESXi, which is a well-known choice. This is an enterprise-ready solution that offers enhanced security hosts that are able to be created with up to 128 virtual CPUs and 6 TB of RAM, the ability to access roles, extensive logging and auditing. Microsoft Hyper-V is another popular alternative. Microsoft Hyper-V is less expensive and is easier to manage than vSphere however it has the same capabilities.