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What Is KVM Virtualization?
What Is KVM Virtualization?

Find out more about KVM on VPS plans at Hostinger

Updated over a week ago

What Is Virtualization?

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.

What Is KVM?

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.

What Makes KVM VPS Different?

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:

  • Using the latest Linux kernels

  • Using application containers, such as Docker and Kubernetes

  • Installing a VPN, like PPTP or OpenVPN

  • Changing network interface parameters (IPv4/IPv6)

Can an Existing VPS Be Migrated to KVM?

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.

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