The main types of virtualization are server, desktop, application, storage, network, data, OS-level (containers) and nested virtualization. Each one hides a physical resource behind a software layer, so you can share it, move it or manage it more easily. Server virtualization is the most common, and it is where most home labs start.
Updated October 2026. This guide replaces the 2011 version with current tools and a home lab focus.
Who this is for: you keep hearing different "virtualization" terms and want one page that sorts them out, with links to the deeper guides.
What all types of virtualization have in common
Virtualization means one thing pretends to be another. Software sits between a real resource and the thing that uses it. The user sees a clean, simple resource. The software handles the messy physical details underneath.
That idea applies to many layers: a whole computer, a desktop, one app, a disk, a network or a dataset. The type of virtualization just tells you which layer you are abstracting. If you want the general idea first, read what virtualization is.
Types of virtualization at a glance
| Type | What it virtualizes | Common tools | Home lab use |
|---|---|---|---|
| Server | A whole physical server, split into VMs | Proxmox VE, VMware ESXi, Hyper-V, XCP-ng | Very common |
| Desktop | A user's desktop, run on a server or a local VM | VDI platforms, VirtualBox, VMware Workstation | Common (local VMs) |
| Application | One app, separated from the OS | App streaming tools, Flatpak, Snap | Occasional |
| Storage | Many disks, shown as one pool | ZFS, Ceph, LVM, SAN arrays | Very common |
| Network | Switches, routers and links, in software | Linux bridges, VLANs, SDN, Open vSwitch | Common |
| Data | Many data sources, shown as one view | Data virtualization platforms | Rare |
| OS-level (containers) | The OS user space, sharing one kernel | LXC, Docker, Podman | Very common |
| Nested | A hypervisor running inside a VM | Proxmox in VirtualBox, ESXi in Proxmox | Common for learning |
Server virtualization
Server virtualization runs several virtual machines on one physical server. A hypervisor gives each VM its own slice of CPU, memory, disk and network. Each VM runs a full operating system, such as Linux or Windows.
This is the type most people mean when they say "virtualization". It lets one mini PC run your DNS filter, file server, media server and test boxes side by side. For a full walkthrough, read what server virtualization is. To understand the engine underneath, read what a hypervisor is, type 1 vs type 2.
In home labs, Proxmox VE is a popular choice. As of October 2026, it is open source, and it runs both VMs and containers. Verify current license terms on the Proxmox site. Windows-centered shops often use Microsoft Hyper-V instead.
Desktop virtualization
Desktop virtualization separates a user's desktop from the physical device in front of them. There are two main forms.
Hosted desktops (VDI)
The desktop runs as a VM on a central server. The user connects from a thin client, a laptop or a browser. Companies use this to manage many desktops in one place. It needs solid servers and a good network.
Local desktop VMs
You run a second operating system in a window on your own computer. A developer on a Mac might run a Linux VM. A Linux user might keep a Windows VM for one app. Tools such as VirtualBox and VMware Workstation do this job.
See the older guide to desktop virtualization for background, and VMware vs VirtualBox vs Proxmox to pick a desktop tool.
Application virtualization
Application virtualization packages one app with what it needs, so it runs without a normal install. The app is isolated from the rest of the system. That reduces conflicts between apps and makes updates or removals clean.
In businesses, this often means app streaming, where the app runs from a central server. On Linux desktops, formats such as Flatpak and Snap use a similar idea of sandboxed, self-contained apps. In a home lab, you meet this less often than the other types.
Storage virtualization
Storage virtualization pools many physical disks and presents them as one logical resource. You stop caring which disk holds which file. The software handles placement, redundancy and growth.
Home labs use this all the time, often without calling it virtualization:
- ZFS combines disks into a pool with checksums, snapshots and redundancy.
- LVM lets you carve flexible volumes out of one or more disks.
- Ceph spreads storage across several servers, so it survives a node failure.
- A NAS shares storage over the network, so many VMs can use it.
For background, see the older guide to storage (data) virtualization.
Network virtualization
Network virtualization builds switches, routers and network segments in software. VMs and containers plug into virtual network cards. Those cards connect to virtual switches, which then connect to the real network, or to nothing at all.
Common building blocks in a home lab:
- Bridges. A Linux bridge acts like a virtual switch. Proxmox creates one by default during install.
- VLANs. These split one physical network into several isolated ones. You might keep cameras and smart plugs away from your main devices.
- Virtual firewalls and routers. A VM running OPNsense or pfSense can route and filter traffic for the whole lab.
- Software-defined networking (SDN). This manages networks across several hosts from one place. Larger setups and clusters use it.
Data virtualization
Data virtualization gives you one view across many data sources. A user queries "customers" and gets results from a database, a spreadsheet and a cloud app, without copying the data into one place. Businesses use it for reporting and analytics.
Do not confuse it with storage virtualization. Storage virtualization is about disks and blocks. Data virtualization is about records and queries. Most home labs never need it.
OS-level virtualization (containers)
OS-level virtualization runs isolated user spaces on one shared kernel. Each isolated space is a container. Containers do not boot their own kernel, so they start in seconds and use little memory.
There are two common families. System containers, such as LXC, feel like a small Linux server. Application containers, such as Docker, package one app and its dependencies. Proxmox runs LXC containers natively, and many people run Docker inside a VM or an LXC container.
The trade-off is isolation. A VM has its own kernel. A container shares the host's kernel, so it can only run the same OS family as the host. Read containers vs virtual machines for when each one wins.
Nested virtualization
Nested virtualization means you run a hypervisor inside a virtual machine. For example, you can install Proxmox VE inside VirtualBox on an Intel or AMD laptop, then create VMs inside that Proxmox.
It is a great way to learn without spare hardware. You can also build a small test cluster on one machine. Performance is lower, and your CPU and outer hypervisor must support passing virtualization features through. Check the docs for your outer hypervisor before you start.
How the types fit together in one home lab
The types are not rivals. A typical home server uses several at once. One Proxmox host does server virtualization for a Windows VM and a firewall VM. It runs containers for small services. Its disks sit in a ZFS pool, which is storage virtualization. Its VMs connect through a bridge and two VLANs, which is network virtualization. You manage all of it from one web page.
Which type should you learn first?
For a home lab, learn in this order:
- Server virtualization. Install a hypervisor and run your first VMs.
- Containers. Move small services into LXC or Docker to save resources.
- Storage virtualization. Set up a ZFS pool or a NAS share with snapshots and backups.
- Network virtualization. Add VLANs and a virtual firewall.
Use nested virtualization at any step to test changes safely. Before you commit, read the disadvantages of server virtualization so you plan for backups and failure from day one.
Common mistakes
- Mixing up storage and data virtualization. One is about disks, the other is about queries.
- Thinking containers replace VMs. They complement VMs. Most labs use both.
- Running everything nested for good. Nested setups suit learning, not always-on services.
- Building complex networks too early. Start with one bridge. Add VLANs when you have a reason.
FAQ
How many types of virtualization are there?
There is no single official list. Most guides name between four and eight types. The common ones are server, desktop, application, storage, network, data and OS-level (containers).
What is the most common type of virtualization?
Server virtualization is the most common. Data centers, cloud providers and home labs all use it.
Is Docker a type of virtualization?
Yes. Docker uses OS-level virtualization. Containers share the host kernel instead of running their own. That makes them lighter than VMs but less isolated.
What is the difference between server and desktop virtualization?
Server virtualization splits one server into many VMs that run services. Desktop virtualization gives a user a desktop that runs as a VM, either on a central server or on their own computer. The technology is similar. The purpose differs.
What is network virtualization used for?
It lets you build switches, VLANs and firewalls in software. In a home lab, you use it to connect VMs and to isolate groups of devices. In data centers, it lets teams change networks without touching cables.
Can I try nested virtualization on a laptop?
Yes, if your CPU supports VT-x or AMD-V and your desktop hypervisor can pass it through. Give the outer VM enough RAM for the inner VMs too. Expect slower performance than on bare metal.
