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ESX Server — VMware’s high-end server product that installs directly on the physical hardware and

therefore offers the best performance. ESX Server supports more virtual machines per physical CPU than

its other virtualization products such as VMware Server (previously called GSX server).

Farm or Data Center— The primary organizational structure used in VMware vCenter, which contains

hosts and virtual machines. The term Farm is used with VMware vCenter 1.x while the term Data Center is

used with vCenter.4.0 or 2.x.

Guest operating system — An operating system that runs on a virtual machine.

Hypervisor - Virtualization software that allows multiple

operating systems to run concurrently on a host

computer.

ISO image — A CD or DVD image that can be downloaded and burnt on a CD-ROM or DVD-ROM or,

mounted as a loopback device.

Management User Interface (MUI) — A web-based graphical interface for VMware that manages a

VMware ESX 2.5.x server.

Mapping file — A VMFS file containing metadata used to map and manage a raw device.

Network label — A unique name given to a virtual switch on the ESX server.

Port Groups —Port groups define how a connection is made through the vSwitch to the network. Network

services connect to virtual switches through port groups. Usually one or more port group is associated with

a single vSwitch.

Raw device mapping (RDM) – Raw device mapping volumes consists of a pointer in a .vmdk file and a

physical raw device. The pointer in the .vmdk points to the physical raw device. The .vmdk file resides on a

VMFS volume, which must reside on shared storage.

Service console (COS) — The modified Linux kernel that serves as the management interface to the ESX

server. Not to be confused with VMkernel.

Templates —A means to import virtual machines and store them as templates that can be deployed at a

later time to create new virtual machines.

VMware vCenter — A virtual infrastructure management product that manages and provide valuable

services for virtual machines and underlying virtualization platforms from a central, secure location.

VMware vSphere Client — An interface that allows you to connect any Windows PC remotely to a

vCenter Server or ESX/ESXi.

Virtual machine — A virtualized x86 PC environment on which a guest operating system and associated

application software can run. Multiple virtual machines can operate on the same physical machine

concurrently.

Virtual machine configuration file — A file containing a virtual machine configuration that is created by

the Configuration Wizard or the Configuration Editor. VMware ESX Server uses this file to identify and

run a specific virtual machine. It usually has a .vmx extension.

Virtual switch — A switch that allows virtual network interface cards (NICs) to communicate with one

another. Additionally, you can connect one or more physical network adapters to a virtual switch, so that

virtual machines can communicate with the outside world.

VMFS — A clustered file system that stores virtual disks and other files that are used by virtual machines.

VMkernel — A kernel that controls the server hardware and schedules virtual machine computations and

I/O operations.

EMC CLARiiON Integration with

VMware ESX Server

Applied Technology 6

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