<s>
In	O
computer	B-General_Concept
data	I-General_Concept
storage	I-General_Concept
,	O
data	B-General_Concept
striping	I-General_Concept
is	O
the	O
technique	O
of	O
segmenting	O
logically	O
sequential	O
data	O
,	O
such	O
as	O
a	O
file	O
,	O
so	O
that	O
consecutive	O
segments	O
are	O
stored	O
on	O
different	O
physical	O
storage	O
devices	O
.	O
</s>
<s>
Striping	B-General_Concept
is	O
useful	O
when	O
a	O
processing	O
device	O
requests	O
data	O
more	O
quickly	O
than	O
a	O
single	O
storage	O
device	O
can	O
provide	O
it	O
.	O
</s>
<s>
It	O
is	O
also	O
a	O
useful	O
method	O
for	O
balancing	O
I/O	O
load	O
across	O
an	O
array	O
of	O
disks	B-Device
.	O
</s>
<s>
Striping	B-General_Concept
is	O
used	O
across	O
disk	B-Device
drives	I-Device
in	O
redundant	B-Architecture
array	I-Architecture
of	I-Architecture
independent	I-Architecture
disks	I-Architecture
(	O
RAID	B-Architecture
)	O
storage	O
,	O
network	B-Protocol
interface	I-Protocol
controllers	I-Protocol
,	O
disk	B-Device
arrays	O
,	O
different	O
computers	O
in	O
clustered	B-Application
file	I-Application
systems	I-Application
and	O
grid-oriented	B-General_Concept
storage	I-General_Concept
,	O
and	O
RAM	B-Architecture
in	O
some	O
systems	O
.	O
</s>
<s>
One	O
method	O
of	O
striping	B-General_Concept
is	O
done	O
by	O
interleaving	O
sequential	O
segments	O
on	O
storage	O
devices	O
in	O
a	O
round-robin	B-Algorithm
fashion	O
from	O
the	O
beginning	O
of	O
the	O
data	O
sequence	O
.	O
</s>
<s>
Such	O
non-sequential	O
interleaving	O
can	O
have	O
benefits	O
in	O
some	O
error	B-Error_Name
correction	I-Error_Name
schemes	O
.	O
</s>
<s>
Advantages	O
of	O
striping	B-General_Concept
include	O
performance	O
and	O
throughput	O
.	O
</s>
<s>
This	O
disadvantage	O
of	O
striping	B-General_Concept
can	O
be	O
overcome	O
by	O
the	O
storage	O
of	O
redundant	O
information	O
,	O
such	O
as	O
parity	O
,	O
for	O
the	O
purpose	O
of	O
error	B-Error_Name
correction	I-Error_Name
.	O
</s>
<s>
The	O
segments	O
of	O
sequential	O
data	O
written	O
to	O
or	O
read	O
from	O
a	O
disk	B-Device
before	O
the	O
operation	O
continues	O
on	O
the	O
next	O
disk	B-Device
are	O
usually	O
called	O
chunks	O
,	O
strides	O
or	O
stripe	O
units	O
,	O
while	O
their	O
logical	O
groups	O
forming	O
single	O
striped	O
operations	O
are	O
called	O
strips	O
or	O
stripes	O
.	O
</s>
<s>
The	O
number	O
of	O
data	B-General_Concept
disks	I-General_Concept
in	O
the	O
array	O
is	O
sometimes	O
called	O
the	O
stripe	O
width	O
,	O
but	O
it	O
may	O
also	O
refer	O
to	O
the	O
amount	O
of	O
data	O
within	O
a	O
stripe	O
.	O
</s>
<s>
The	O
amount	O
of	O
data	O
in	O
one	O
stride	O
multiplied	O
by	O
the	O
number	O
of	O
data	B-General_Concept
disks	I-General_Concept
in	O
the	O
array	O
(	O
i.e.	O
,	O
stripe	O
depth	O
times	O
stripe	O
width	O
,	O
which	O
in	O
the	O
geometrical	O
analogy	O
would	O
yield	O
an	O
area	O
)	O
is	O
sometimes	O
called	O
the	O
stripe	O
size	O
or	O
stripe	O
width	O
.	O
</s>
<s>
Wide	O
striping	B-General_Concept
occurs	O
when	O
chunks	O
of	O
data	O
are	O
spread	O
across	O
multiple	O
arrays	O
,	O
possibly	O
all	O
the	O
drives	O
in	O
the	O
system	O
.	O
</s>
<s>
Narrow	O
striping	B-General_Concept
occurs	O
when	O
the	O
chunks	O
of	O
data	O
are	O
spread	O
across	O
the	O
drives	O
in	O
a	O
single	O
array	O
.	O
</s>
<s>
Data	B-General_Concept
striping	I-General_Concept
is	O
used	O
in	O
some	O
databases	O
,	O
such	O
as	O
Sybase	B-Application
,	O
and	O
in	O
certain	O
RAID	B-Architecture
devices	O
under	O
software	O
or	O
hardware	O
control	O
,	O
such	O
as	O
IBM	O
's	O
9394	O
RAMAC	O
Array	O
subsystem	O
.	O
</s>
<s>
File	O
systems	O
of	O
clusters	B-Architecture
also	O
use	O
striping	B-General_Concept
.	O
</s>
<s>
Oracle	B-Application
Automatic	B-Application
Storage	I-Application
Management	I-Application
allows	O
ASM	O
files	O
to	O
be	O
either	O
coarse	O
or	O
fine	O
striped	O
.	O
</s>
<s>
In	O
some	O
RAID	B-Architecture
configurations	O
,	O
such	O
as	O
RAID	B-Architecture
0	O
,	O
failure	O
of	O
a	O
single	O
member	O
drive	O
of	O
the	O
RAID	B-Architecture
array	I-Architecture
causes	O
all	O
stored	O
data	O
to	O
be	O
lost	O
.	O
</s>
<s>
In	O
other	O
RAID	B-Architecture
configurations	O
,	O
such	O
as	O
a	O
RAID	B-Architecture
5	O
that	O
contains	O
distributed	O
parity	O
and	O
provides	O
redundancy	B-General_Concept
,	O
if	O
one	O
member	O
drive	O
fails	O
the	O
data	O
can	O
be	O
restored	O
using	O
the	O
other	O
drives	O
in	O
the	O
array	O
.	O
</s>
<s>
Data	B-General_Concept
striping	I-General_Concept
can	O
also	O
be	O
achieved	O
with	O
Linux	O
's	O
Logical	B-Application
Volume	I-Application
Management	I-Application
(	O
LVM	O
)	O
.	O
</s>
<s>
The	O
LVM	O
system	O
allows	O
for	O
the	O
adjustment	O
of	O
coarseness	O
of	O
the	O
striping	B-General_Concept
pattern	O
.	O
</s>
<s>
LVM	O
tools	O
will	O
allow	O
implementation	O
of	O
data	B-General_Concept
striping	I-General_Concept
in	O
conjunction	O
with	O
mirroring	B-General_Concept
.	O
</s>
<s>
LVM	O
offers	O
the	O
added	O
benefit	O
of	O
read	O
and	O
write	O
caching	O
on	O
NVM	B-Application
Express	I-Application
for	O
slow	O
spinning	O
storage	O
.	O
</s>
<s>
LVM	O
has	O
other	O
advantages	O
that	O
are	O
not	O
directly	O
related	O
to	O
data	B-General_Concept
striping	I-General_Concept
(	O
like	O
snapshots	O
,	O
dynamic	O
resizing	O
,	O
etc	O
)	O
.	O
</s>
<s>
Have	O
RAID	B-Architecture
like	O
features	O
but	O
with	O
the	O
security	O
of	O
chunk	O
integrity	O
to	O
detect	O
bad	O
blocks	O
,	O
and	O
the	O
added	O
flexibility	O
of	O
adding	O
arbitrary	O
numbers	O
of	O
extra	O
drives	O
.	O
</s>
<s>
They	O
also	O
have	O
other	O
advantages	O
that	O
are	O
not	O
directly	O
related	O
to	O
data	B-General_Concept
striping	I-General_Concept
(	O
copy	O
on	O
write	O
,	O
etc	O
)	O
.	O
</s>
