Virtualization is the process in which a system's singular resource, like RAM, CPU, or disk, can be managed as multiple resources. There are two main types of virtualization technology: containers and virtual machines.

The key difference between containers and virtual machines is that, while containers share the host resources, virtual machines virtualize an entire machine: its own kernel, network card, disk, and graphics adapter.

Kernel-based Virtual Machine (KVM) is a full virtualization solution where the VPS acts as a completely independent server. This allows for more resources to be available for the VPS than containers, provides more isolation, and increases customizability.

As container-type Virtual Private Servers share the underlying physical hardware with other VPS, some configurations are still limited. Performance can also vary depending on the total workload of all the VPS hosted on the physical server.

KVM technology ensures each VPS gets fully separate resources, even if they share the host server, providing better performance and stability. Using a KVM allows for more functionality on your VPS, such as:

VPS purchased before April 18th, 2023, use OpenVZ, which is a container type of virtualization. Due to the different virtualization used, it is not possible to switch automatically from OpenVZ to KVM. If you're interested in KVM, you can get a new KVM VPS plan and migrate your content manually.