<s>
In	O
computing	O
,	O
a	O
failure	B-Architecture
domain	I-Architecture
encompasses	O
a	O
physical	O
or	O
logical	O
section	O
of	O
the	O
computing	O
environment	O
that	O
is	O
negatively	O
affected	O
when	O
a	O
critical	O
device	O
or	O
service	O
experiences	O
problems	O
.	O
</s>
<s>
To	O
put	O
it	O
another	O
way	O
,	O
failure	B-Architecture
domains	I-Architecture
are	O
regions	O
or	O
components	O
of	O
infrastructure	B-Application
that	O
could	O
fail	O
.	O
</s>
<s>
The	O
size	O
of	O
a	O
failure	B-Architecture
domain	I-Architecture
and	O
its	O
potential	O
impact	O
depends	O
on	O
the	O
device	O
or	O
service	O
that	O
is	O
malfunctioning	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
router	B-Protocol
potentially	O
experiencing	O
problems	O
would	O
generally	O
create	O
a	O
more	O
significant	O
failure	B-Architecture
domain	I-Architecture
than	O
a	O
network	B-Protocol
switch	I-Protocol
would	O
.	O
</s>
<s>
Smaller	O
failure	B-Architecture
domains	I-Architecture
reduce	O
the	O
risk	O
of	O
disruption	O
over	O
a	O
large	O
section	O
of	O
a	O
network	O
,	O
and	O
eases	O
the	O
troubleshooting	O
process	O
.	O
</s>
<s>
Redundancy	O
within	O
failure	B-Architecture
domains	I-Architecture
is	O
a	O
key	O
approach	O
to	O
help	O
mitigate	O
the	O
risks	O
of	O
failure	O
.	O
</s>
<s>
For	O
example	O
,	O
technologies	O
like	O
RAID	B-Architecture
helps	O
mitigate	O
the	O
risks	O
of	O
drive	O
failure	O
by	O
creating	O
multiple	O
data	O
copies	O
.	O
</s>
