![]() ![]() Sometimes there is confusion between ESXi and vSphere. ![]() Since it is a Type 1 Hypervisor, it is based on its kernel and runs independently from any operating system. What is VMware(vSphere)ĮSXi stands for, Elastic Sky X Integrated, also known as vSphere, and is a Type 1 Hypervisor from VMware that runs independently from any OS. But the support is provided by the Linux OS vendors, not the KVM. ![]() That is why many Enterprise companies use it. KVM doesn’t need licenses, and it is free. KVM is basically a Linux server, but it provides extra specific features with its virtual tools and features. KVM is implemented in the Host OS with a set of Kernel modules (kvm.ko, kvm-intel.ko, and kvm-amd.ko), providing the core virtualization infrastructure. It converts any Linux into a Type 1 Hypervisor since it provides direct access to the hardware resources, Intel VT-x(or VT), and AMD-V hardware. Kernel-based Virtual Machine (KVM) is an open-source Type 1 Hypervisor that can be installed in most Linux distributions and some Windows.Įven though KVM runs on top of a Linux OS, it is considered a Linux-based Type-1 Hypervisor. This article discusses Type 1 Hypervisor: vSphere(VMware) and KVM. In this case, guest OS runs at the third level above the hardware.Įxample: VMware Workstation/Fusion, Oracle Virtualbox or Windows Virtual PC, etcįor example, Hyper-V and KVM work as a Server role, but it is still considered a bare metal, native Hypervisor since the Hypervisor has direct access to hardware and any VMs hosted by the Hypervisor.
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