Technical information

VMware, Inc. 43
A AMD Virtualization (AMD-V)
AMD’s version of virtualization assist, included in some 64-bit AMD processors. See also Virtualization
Assist.
B Ballooning
A technique used in VMware ESX to reclaim the guest memory pages that are considered the least
valuable by the guest operating system. This is accomplished using the vmmemctl driver, which is
installed as part of the VMware Tools suite.
C Checksum Offload
An option enabling a network adapter to calculate the TCP checksum, thus reducing CPU load.
Clone
A copy of a virtual machine. See also Full Clone and Linked Clone.
Console
See VMware Virtual Machine Console.
Core
A processing unit. Often used to refer to multiple processing units in one package (a so-called “multi-core
CPU”). Also used by Intel to refer to a particular family of processors (with the “Core microarchitecture”).
Note that the Intel “Core” brand did not include the Core microarchitecture. Instead, this
microarchitecture began shipping with the “Core 2” brand.
D Distributed Power Management (DPM)
A feature that uses DRS to unload servers, allowing them to be placed into standby, and thereby saving
power. When the load increases, the servers can be automatically brought back online.
Distributed Resource Management (DRS)
A feature that monitors utilization across resource pools and uses VMotion to move running virtual
machines to other servers.
E E1000
One of the virtual network adapters available in a virtual machine running in ESX. The E1000 adapter
emulates an Intel E1000 device. See also vlance and VMXNET.
Enhanced VMXNET
One of the virtual network adapters available in a virtual machine running in ESX. The Enhanced
VMXNET adapter is a high-performance paravirtualized device with drivers (available in VMware Tools)
for many guest operating systems. See also VMXNET, VMXNET3, E1000, vlance, and NIC Morphing.
Glossary