VMware, Inc.
171
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)
.
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