<s>
VMware	B-Operating_System
Server	I-Operating_System
(	O
formerly	O
VMware	B-Operating_System
GSX	I-Operating_System
Server	I-Operating_System
)	O
is	O
a	O
discontinued	O
free-of-charge	O
virtualization-software	O
server	O
suite	O
developed	O
and	O
supplied	O
by	O
VMware	O
,	O
Inc	O
.	O
</s>
<s>
VMware	B-Operating_System
Server	I-Operating_System
has	O
fewer	O
features	O
than	O
VMware	B-Operating_System
ESX	I-Operating_System
,	O
software	O
available	O
for	O
purchase	O
,	O
but	O
can	O
create	O
,	O
edit	O
,	O
and	O
play	O
virtual	B-Architecture
machines	I-Architecture
.	O
</s>
<s>
It	O
uses	O
a	O
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
model	I-Operating_System
,	O
allowing	O
remote	B-Protocol
access	I-Protocol
to	O
virtual	B-Architecture
machines	I-Architecture
,	O
at	O
the	O
cost	O
of	O
some	O
graphical	O
performance	O
(	O
and	O
3D	B-Architecture
support	O
)	O
.	O
</s>
<s>
It	O
can	O
run	O
virtual	B-Architecture
machines	I-Architecture
created	O
by	O
other	O
VMware	O
products	O
and	O
by	O
Microsoft	B-Application
Virtual	I-Application
PC	I-Application
.	O
</s>
<s>
VMware	B-Operating_System
Server	I-Operating_System
can	O
preserve	O
and	O
revert	O
to	O
a	O
single	O
snapshot	B-Operating_System
copy	O
of	O
each	O
separate	O
virtual	B-Architecture
machine	I-Architecture
within	O
the	O
VMware	B-Operating_System
Server	I-Operating_System
environment	O
.	O
</s>
<s>
The	O
software	O
does	O
not	O
have	O
a	O
specific	O
interface	O
for	O
cloning	O
virtual	B-Architecture
machines	I-Architecture
,	O
unlike	O
VMware	B-Operating_System
Workstation	I-Operating_System
.	O
</s>
<s>
VMware	B-Operating_System
Server	I-Operating_System
has	O
largely	O
been	O
replaced	O
by	O
the	O
"	O
Shared	O
Virtual	B-Architecture
Machines	I-Architecture
"	O
feature	O
,	O
introduced	O
in	O
VMware	B-Operating_System
Workstation	I-Operating_System
8.0	O
and	O
onwards	O
.	O
</s>
<s>
The	O
former	O
name	O
GSX	B-Operating_System
Server	I-Operating_System
allegedly	O
stands	O
for	O
Ground	O
Storm	O
X	O
,	O
an	O
early	O
code	O
name	O
for	O
the	O
project	O
.	O
</s>
<s>
VMware	O
released	O
version	O
1.0	O
of	O
Server	O
on	O
July	O
12	O
,	O
2006	O
,	O
replacing	O
the	O
discontinued	O
VMware	B-Operating_System
GSX	I-Operating_System
Server	I-Operating_System
product-line	O
.	O
</s>
<s>
VMware	O
Inc	O
continued	O
to	O
develop	O
the	O
Vmware	B-Operating_System
Server	I-Operating_System
1.0.x	O
series	O
,	O
issuing	O
a	O
maintenance	O
release	O
(	O
version	O
1.0.10	O
)	O
on	O
26	O
October	O
2009	O
.	O
</s>
<s>
VMware	B-Operating_System
Server	I-Operating_System
2	O
runs	O
on	O
several	O
server-class	O
host	O
operating	O
systems	O
,	O
</s>
<s>
including	O
different	O
versions	O
of	O
Microsoft	B-Application
Windows	I-Application
Server	O
2000	O
,	O
2003	O
,	O
and	O
2008	O
,	O
and	O
mainly	O
enterprise-class	O
Linuxes	B-Application
.	O
</s>
<s>
For	O
web	O
interfaces	O
,	O
VMware	B-Operating_System
Server	I-Operating_System
2	O
and	O
VMware	O
vCenter	O
4	O
use	O
the	O
Tomcat	B-Language
6	O
web	O
server	O
,	O
while	O
VMware	O
vCenter	O
2.5	O
is	O
based	O
on	O
Tomcat	B-Language
2.5	O
.	O
</s>
<s>
As	O
part	O
of	O
the	O
product	O
,	O
the	O
VMware	O
Host	O
Agent	O
service	O
(	O
also	O
carried	O
over	O
to	O
VMware	B-Operating_System
Workstation	I-Operating_System
Server	O
until	O
today	O
)	O
allows	O
remote	B-Protocol
access	I-Protocol
to	O
VMware	B-Operating_System
Server	I-Operating_System
functionality	O
.	O
</s>
<s>
VMware	B-Operating_System
server	I-Operating_System
2	O
supports	O
the	O
Microsoft	O
Shadow	O
Copy	O
service	O
.	O
</s>
<s>
(	O
Microsoft	B-General_Concept
Virtual	I-General_Concept
Server	I-General_Concept
2005	O
R2	O
SP1	O
also	O
supports	O
Shadow	O
Copy	O
.	O
)	O
</s>
<s>
Virtual	B-Architecture
machines	I-Architecture
that	O
support	O
this	O
service	O
can	O
be	O
backed	B-Protocol
up	I-Protocol
without	O
stopping	O
.	O
</s>
<s>
VMware	B-Operating_System
Server	I-Operating_System
was	O
discontinued	O
in	O
January	O
2010	O
;	O
general	O
support	O
ended	O
on	O
June	O
30	O
,	O
2011	O
.	O
</s>
