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Table Of Contents
Introduction to VMware vSphere
Virtual Machines 1
A virtual machine is a software computer that, like a physical computer, runs an operating system and
applications. The virtual machine consists of a set of specification and configuration files and is backed by
the physical resources of a host. Every virtual machine has virtual devices that provide the same
functionality as physical hardware but are more portable, more secure, and easier to manage.
Before you start creating and managing virtual machines, you benefit from some background information,
for example, the virtual machine lifecycle, components, and VMware Tools.
This chapter includes the following topics:
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Virtual Machine Files
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Virtual Machines and the Virtual Infrastructure
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Virtual Machine Lifecycle
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Virtual Machine Components
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Virtual Machine Hardware Available to vSphere Virtual Machines
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Virtual Machine Options
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vSphere Web Client
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Where to Go From Here
Virtual Machine Files
A virtual machine consists of several files that are stored on a storage device. The key files are the
configuration file, virtual disk file, NVRAM setting file, and log file. You configure virtual machine settings
through the vSphere Client, one of the vSphere command-line interfaces (PowerCLI, vCLI), or the
vSphere Web Services SDK.
Caution Do not change, move, or delete virtual machine files without instructions from a VMware
Technical Support representative.
Table 11. Virtual Machine Files
File Usage Description
.vmx vmname.vmx
Virtual machine configuration file
.vmxf vmname.vmxf
Additional virtual machine configuration files
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