A hypervisor, also called a virtual machine manager, is a program that allows multiple operating systems to share a single hardware host. Each operating system appears to have the host's processor, memory, and other resources all to itself. However, the hypervisor is actually controlling the host processor and resources, allocating what is needed to each operating system in turn and making sure that the guest operating systems (called virtual mahines) cannot disrupt each other.
Type 1 hypervisor runs directly on the hardware.
Type 2 hypervisor runs on another operating system, such as Linux.
Major Hypervisors
• Xen
• KVM
• VMware ESX
• Microsoft Hyper-V
• PowerVM
• Logical Domains / Oracle VM
Type 1 hypervisor runs directly on the hardware.
Type 2 hypervisor runs on another operating system, such as Linux.
Major Hypervisors
• Xen
• KVM
• VMware ESX
• Microsoft Hyper-V
• PowerVM
• Logical Domains / Oracle VM
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