<s>
In	O
computing	O
,	O
a	O
distributed	B-Operating_System
cache	I-Operating_System
is	O
an	O
extension	O
of	O
the	O
traditional	O
concept	O
of	O
cache	B-General_Concept
used	O
in	O
a	O
single	O
locale	B-Operating_System
.	O
</s>
<s>
A	O
distributed	B-Operating_System
cache	I-Operating_System
may	O
span	O
multiple	O
servers	O
so	O
that	O
it	O
can	O
grow	O
in	O
size	O
and	O
in	O
transactional	O
capacity	O
.	O
</s>
<s>
It	O
is	O
mainly	O
used	O
to	O
store	O
application	O
data	O
residing	O
in	O
database	O
and	O
web	O
session	B-Protocol
data	O
.	O
</s>
<s>
The	O
idea	O
of	O
distributed	O
caching	B-General_Concept
has	O
become	O
feasible	O
now	O
because	O
main	B-Architecture
memory	I-Architecture
has	O
become	O
very	O
cheap	O
and	O
network	B-Protocol
cards	I-Protocol
have	O
become	O
very	O
fast	O
,	O
with	O
1Gbit	O
now	O
standard	O
everywhere	O
and	O
10Gbit	O
gaining	O
traction	O
.	O
</s>
<s>
Also	O
,	O
a	O
distributed	B-Operating_System
cache	I-Operating_System
works	O
well	O
on	O
lower	O
cost	O
machines	O
usually	O
employed	O
for	O
web	B-Application
servers	I-Application
as	O
opposed	O
to	O
database	B-Application
servers	I-Application
which	O
require	O
expensive	O
hardware	O
.	O
</s>
<s>
An	O
emerging	O
internet	O
architecture	O
known	O
as	O
Information-centric	B-Protocol
networking	I-Protocol
(	O
ICN	O
)	O
is	O
one	O
of	O
the	O
best	O
examples	O
of	O
a	O
distributed	B-Operating_System
cache	I-Operating_System
network	O
.	O
</s>
<s>
The	O
ICN	O
is	O
a	O
network	O
level	O
solution	O
hence	O
the	O
existing	O
distributed	O
network	O
cache	B-General_Concept
management	O
schemes	O
are	O
not	O
well	O
suited	O
for	O
ICN	O
.	O
</s>
<s>
In	O
the	O
supercomputer	B-Architecture
environment	O
,	O
distributed	B-Operating_System
cache	I-Operating_System
is	O
typically	O
implemented	O
in	O
the	O
form	O
of	O
burst	B-Operating_System
buffer	I-Operating_System
.	O
</s>
