1værtshypervisor

1værtshypervisor, also known as a Type 1 hypervisor or bare-metal hypervisor, is a software layer that directly interfaces with the host's hardware to manage and allocate resources to multiple virtual machines. Unlike Type 2 hypervisors, which run on top of an existing operating system, a Type 1 hypervisor is installed directly onto the server hardware, making it the first software layer to boot. This architecture provides for more efficient resource utilization and lower latency as there is no underlying operating system to contend with.

Key characteristics of a 1værtshypervisor include its ability to control hardware directly, create and manage virtual machines (guests), and isolate them from each other. Each virtual machine operates as if it has its own dedicated hardware, including CPU, memory, storage, and network interfaces, all of which are virtualized by the hypervisor. This isolation enhances security, as a problem or compromise within one virtual machine typically does not affect others.

Common use cases for 1værtshypervisors are found in enterprise data centers, cloud computing environments, and server consolidation scenarios. They are fundamental to virtualization technologies, enabling businesses to run multiple operating systems and applications on a single physical server, thereby reducing hardware costs, power consumption, and physical space requirements. Examples of popular Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and Citrix XenServer.