<s>
Geoplexing	B-General_Concept
is	O
a	O
computer	B-General_Concept
science	I-General_Concept
term	O
relating	O
to	O
the	O
duplication	O
of	O
computer	B-General_Concept
storage	I-General_Concept
and	O
applications	B-Application
within	O
a	O
server	B-Operating_System
farm	I-Operating_System
over	O
geographically	O
diverse	O
locations	O
for	O
the	O
purpose	O
of	O
fault	B-General_Concept
tolerance	I-General_Concept
.	O
</s>
<s>
The	O
name	O
comes	O
from	O
a	O
contraction	O
of	O
geographical	O
multiplex	B-Architecture
.	O
</s>
<s>
Geoplexes	O
can	O
be	O
"	O
active-active	O
"	O
(	O
where	O
all	O
of	O
the	O
clusters	O
are	O
used	O
in	O
tandem	O
)	O
or	O
"	O
active-passive	O
"	O
(	O
where	O
one	O
or	O
more	O
of	O
the	O
clusters	O
are	O
kept	O
as	O
a	O
hot	B-General_Concept
spare	I-General_Concept
)	O
.	O
</s>
<s>
Data	O
and	O
applications	B-Application
are	O
shared	O
either	O
via	O
cloning	B-Application
or	O
partitioning	O
.	O
</s>
<s>
With	O
cloning	B-Application
,	O
each	O
server	O
in	O
a	O
cluster	O
handles	O
one	O
or	O
more	O
applications	B-Application
,	O
with	O
the	O
applications	B-Application
and	O
the	O
data	O
both	O
being	O
cloned	O
to	O
other	O
servers	O
in	O
the	O
geoplex	O
,	O
and	O
so	O
a	O
load	B-Application
balancer	I-Application
then	O
distributes	O
requests	O
to	O
the	O
cloned	O
servers	O
.	O
</s>
<s>
Meanwhile	O
,	O
with	O
partitioning	O
,	O
hardware	O
and	O
applications	B-Application
are	O
duplicated	O
in	O
the	O
geoplex	O
,	O
while	O
application	O
datasets	O
are	O
divided	O
between	O
the	O
servers	O
,	O
and	O
therefore	O
requests	O
are	O
routed	O
to	O
the	O
appropriate	O
server	O
.	O
</s>
