What is the most popular form of server virtualization?

The most popular form of server virtualization is the deployment of multiple logical servers on a single physical server. This approach allows organizations to maximize resource utilization by running several virtual machines (VMs) on a single physical hardware platform. Each logical server operates independently, equipped with its own operating system and applications, providing the flexibility to run different workloads efficiently without requiring additional physical hardware.

This method reduces costs associated with hardware purchases and maintenance, minimizes energy consumption, and simplifies data center management. It promotes scalability as organizations can quickly provision new servers as needed and can also facilitate easier backup and recovery processes.

In contrast, having a single logical server per physical device restricts the capabilities of the hardware. Utilizing dedicated servers for each application would also lead to inefficient resource use, as it often results in underutilized hardware. Lastly, limiting virtual servers only to cloud-based services restricts the beneficial aspects of virtualization that can be realized across on-premise environments as well. This widespread adaptability and effectiveness in managing resources makes having multiple logical servers on a single physical server the most favored virtualization method in many industries.