<s>
Disk	B-Device
aggregation	I-Device
is	O
the	O
abstraction	B-Architecture
of	O
two	O
or	O
more	O
hard	B-Device
disks	I-Device
,	O
disk	B-Application
partitions	I-Application
,	O
or	O
other	O
logical	B-Application
volumes	I-Application
into	O
a	O
single	O
logical	B-General_Concept
disk	I-General_Concept
.	O
</s>
