<s>
Virtual	B-Device
Storage	I-Device
Platform	I-Device
is	O
the	O
brand	O
name	O
for	O
a	O
Hitachi	O
Data	O
Systems	O
line	O
of	O
computer	B-General_Concept
data	I-General_Concept
storage	I-General_Concept
systems	O
for	O
data	B-Operating_System
centers	I-Operating_System
.	O
</s>
<s>
Hitachi	O
Virtual	B-Device
Storage	I-Device
Platform	I-Device
,	O
also	O
known	O
as	O
VSP	O
was	O
first	O
introduced	O
in	O
September	O
,	O
2010	O
.	O
</s>
<s>
This	O
storage	O
platform	O
builds	O
on	O
the	O
design	O
of	O
Universal	B-Device
Storage	I-Device
Platform	I-Device
V	O
,	O
originally	O
released	O
in	O
2007	O
.	O
</s>
<s>
This	O
storage	O
platform	O
is	O
made	O
up	O
of	O
different	O
technologies	O
than	O
USP	O
and	O
USP	O
V	O
.	O
The	O
connectivity	O
to	O
back-end	O
disks	O
is	O
via	O
6Gbit/s	O
SAS	O
links	O
instead	O
of	O
4Gbit/s	O
Fibre	B-Architecture
Channel	I-Architecture
loop	O
.	O
</s>
<s>
The	O
VSP	O
supports	O
SSD	B-Device
,	O
SAS	O
and	O
SATA	O
drives	O
.	O
</s>
<s>
Support	O
increased	O
needs	O
in	O
virtualized	O
server	O
environments	O
and	O
ensure	O
safe	O
multitenancy	O
and	O
quality	O
of	O
service	O
through	O
partitioning	O
of	O
cache	B-General_Concept
and	O
ports	O
.	O
</s>
<s>
Scale	O
deep	O
to	O
extend	O
the	O
functions	O
of	O
Hitachi	O
Virtual	B-Device
Storage	I-Device
Platform	I-Device
to	O
multivendor	O
storage	O
through	O
virtualization	B-Application
.	O
</s>
<s>
Supports	O
online	O
local	O
and	O
distance	O
replication	B-Architecture
and	O
migration	B-General_Concept
of	O
data	O
nondisruptively	O
internally	O
and	O
between	O
heterogeneous	O
storage	O
,	O
without	O
interrupting	O
application	O
I/O	O
through	O
use	O
of	O
products	O
such	O
as	O
Tiered	O
Storage	O
Manager	O
,	O
ShadowImage	O
,	O
TrueCopy	O
and	O
Universal	O
Replicator	O
.	O
</s>
<s>
Single	O
image	O
global	O
cache	B-General_Concept
accessible	O
across	O
all	O
virtual	O
storage	O
directors	O
for	O
maximum	O
performance	O
.	O
</s>
<s>
Virtual	B-Device
Storage	I-Device
Platform	I-Device
specifications	O
in	O
2010	O
were	O
:	O
</s>
