Working with legacy servers and applications can impact your network and performance and therein your level of overall productivity. Virtualizing your environment to newer hardware and Server OS’s can have a dramatic impact on your overall system performance. 

With newer Windows OS’s, such as Windows server 2016, Microsoft introduced containers. These containers work for applications and virtual machines. They isolate the technology, so it is not impacted by the underlying Operating System, nor does it impact the underlying Operating System with any modifications to its code. So, you can work in a separated and controlled environment with your container that is easily moved to another platform, be it another server or the cloud. 
Within every organization I have worked with, all have had a virtualization platform. My while most of my experience lies with VMware, I have worked with Microsoft's virtualization offering, Hyper-V, for many years. Indeed, many sites have a blend of the two platforms. 

I have built the host machines, upgraded their versions (e.g. ESXi 5.5 to 6.5), created Virtual Machines (VM's), managed and maintained the VM's ensuring they were error free, and had the appropriate Windows patches. 

I have also performed many physical to virtual conversions where the VM would go to either a physical hosted platform or be migrated to the cloud. 

Do you think server virtualization could benefit your company? Please see the approximate details below of 10 servers consolidated into a single Hyper-V host server.

Server Setup
Avg. Watts
kWh/ Annually
KG of CO2
Standalone Servers x 10
Single Hyper-V Host with 10 VMs

We can see above, not only is there significant cost saving, but with the reduced physical footprint there are funds left over for additional investment in your virtualization platform, should you wish to add an additional host, or a Storage Area Network. 

Physical Servers
Virtual Machines
Perfect for organizations running services and operations which require highly productive computing hardware for their implementation
Perfect for organizations running multiple operations or serving multiple users, which plan to extend their production environment in the future
Does not require any overhead layer
Some level of overhead is required for running VMs
Poor capacity optimization
Advanced capacity optimization is enabled by load balancing
Difficult to move or copy
Easy to move or copy
Hardware upgrades are difficult to implement and can lead to considerable downtime
Hardware upgrades are easier to implement; the workload can be migrated to a backup site for the repair period to minimize downtime
No on-demand scalability
On-demand scalability
Has a short life cycle
Supports legacy applications
Physical servers and additional equipment take a lot of space
A single physical server can host multiple VMs, thus saving space
No need for licensing purchase
VM software licenses
Large upfront costs
Small upfront costs