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VMware ESXi (formerly ESX) is an enterprise-class, type-1 hypervisor developed by VMware for deploying and serving virtual computers. As a type-1 hypervisor, ESXi is not a software application that one installs in an operating system; instead, it includes and integrates vital OS components, such as a kernel. After version 4.1, VMware renamed ESX to ''ESXi''. ESXi replaces Service Console (a rudimentary operating system) with a more closely integrated OS. ESX/ESXi is the primary component in the VMware Infrastructure software suite.〔(VMWare:vSphere ESX and ESXi Info Center )〕 The name ''ESX'' is an abbreviation of Elastic Sky X.〔(What does ESX stand for? )〕 ==Architecture== ESX runs on bare metal (without running an operating system)〔("ESX Server Datasheet" )〕 unlike other VMware products. It includes its own kernel: A Linux kernel is started first, and is then used to load a variety of specialized virtualization components, including ESX, which is otherwise known as the vmkernel component. The Linux kernel is the primary virtual machine; it is invoked by the service console. At normal run-time, the vmkernel is running on the bare computer, and the Linux-based service console runs as the first virtual machine. VMWare dropped development of ESX at version 4.1, and now uses ESXi, which does not include a Linux kernel. The vmkernel is a microkernel with three interfaces: hardware, guest systems, and the service console (Console OS). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「VMware ESX」の詳細全文を読む スポンサード リンク
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