VMware VC-VLM4-C User Guide - Page 171
VMFS Virtual Machine File System, virtual machine template - target
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Glossary vCenter Server A service that acts as a central administrator for VMware servers connected on a network. This service directs actions on the virtual machines and the virtual machine hosts. vCenter Server is the working core of vCenter. See also VMware vCenter (vCenter). virtual hardware The devices that make up a virtual machine. The virtual hardware includes the virtual disk, removable devices such as the DVD‐ROM/CD‐ROM and floppy drives, and the virtual Ethernet adapter. virtual machine A virtual machine is a software computer that, like a physical computer, runs an operating system and applications. Multiple virtual machines can operate on the same host system concurrently. virtual machine configuration file (.vmx) A file containing a virtual machine configuration. This .vmx file is created after you create a virtual machine. It is used to identify and run a specific virtual machine. virtual machine console An interface to a virtual machine within the larger Lab Manager Web console. Use the virtual machine console to run programs within it or modify guest operating system settings. Lab Manager provides operations ranging from the installation of VMware Tools to media file activity for the guest operating system to snapshots of virtual machines. virtual machine disk (.vmdk) A file or set of files that appears as a physical disk drive to a guest operating system. These files can be on the host machine or on a remote file system. virtual machine template A master image of a virtual machine that typically includes a specified operating system and virtual counterparts to hardware components. A virtual machine template can include an installed guest operating system and a set of applications. virtual router A virtual machine that specifically routes packets between other virtual machines. Lab Manager configures the virtual router when you deploy a fenced configuration and deletes it when you undeploy the configuration. Lab Manager does not create a virtual router for the Block In and Out fencing mode. virtual switch A virtualized network switch used by ESX to manage traffic between virtual machines, the service console, and the physical network adapters on the ESX host. VMFS (Virtual Machine File System) A file system that is optimized for storing virtual machines. One VMFS partition is supported per SCSI storage device or LUN. Different versions of ESX might use different versions of VMFS. For example, VMFS3 was introduced with ESX Server 3. VMkernel In ESX, a high‐performance hypervisor that occupies the virtualization layer and manages most of the physical resources on the hardware, including memory, physical processors, storage, and networking controllers. VMotion A feature that enables you to move running virtual machines from one ESX system to another without interrupting service. It requires licensing on both the source and target hosts. VMotion is activated by the vCenter agent, and vCenter Server centrally coordinates all VMotion activities. See also virtual machine disk (.vmdk). VMware, Inc. 171