<s>
PowerLinux	B-Application
is	O
the	O
combination	O
of	O
a	O
Linux-based	O
operating	O
system	O
(	O
OS	O
)	O
running	O
on	O
PowerPC	B-Architecture
-	O
or	O
Power	O
ISA-based	O
computers	O
from	O
IBM	O
.	O
</s>
<s>
It	O
is	O
often	O
used	O
in	O
reference	O
along	O
with	O
Linux	B-Application
on	I-Application
Power	I-Application
,	O
and	O
is	O
also	O
the	O
name	O
of	O
several	O
Linux-only	O
IBM	B-Device
Power	I-Device
Systems	I-Device
.	O
</s>
<s>
In	O
the	O
late	O
1990s	O
,	O
IBM	O
began	O
considering	O
the	O
Linux	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
In	O
2000	O
,	O
IBM	O
announced	O
it	O
would	O
promote	O
Linux	B-Application
.	O
</s>
<s>
In	O
2001	O
,	O
IBM	O
invested	O
$1	O
billion	O
to	O
back	O
the	O
Linux	B-Application
movement	O
,	O
embracing	O
it	O
as	O
an	O
operating	O
system	O
for	O
IBM	O
servers	O
and	O
software	O
.	O
</s>
<s>
Within	O
a	O
decade	O
,	O
Linux	B-Application
could	O
be	O
found	O
in	O
virtually	O
every	O
IBM	O
business	O
,	O
geography	O
and	O
workload	O
,	O
and	O
continues	O
to	O
be	O
deeply	O
embedded	O
in	O
IBM	O
hardware	O
,	O
software	O
,	O
services	O
and	O
internal	O
development	O
.	O
</s>
<s>
A	O
survey	O
released	O
by	O
the	B-Operating_System
Linux	I-Operating_System
Foundation	I-Operating_System
in	O
April	O
2012	O
showed	O
IBM	O
as	O
the	O
fifth-leading	O
commercial	O
contributor	O
over	O
the	O
past	O
seven	O
years	O
,	O
with	O
more	O
than	O
600	O
developers	O
involved	O
in	O
more	O
than	O
100	O
open-source	B-Application
projects	O
.	O
</s>
<s>
IBM	O
established	O
the	O
Linux	B-Application
Technology	O
Center	O
(	O
LTC	O
)	O
in	O
1999	O
to	O
combine	O
its	O
software	O
developers	O
interested	O
in	O
Linux	B-Application
and	O
other	O
open-source	B-Application
software	I-Application
into	O
a	O
single	O
organization	O
.	O
</s>
<s>
The	O
LTC	O
collaborated	O
with	O
the	O
Linux	B-Application
community	O
to	O
make	O
Linux	B-Application
run	O
optimally	O
on	O
PowerPC	B-Architecture
,	O
x86	B-Operating_System
,	O
and	O
more	O
recently	O
,	O
the	O
Cell	B-General_Concept
Broadband	I-General_Concept
Engine	I-General_Concept
.	O
</s>
<s>
Developers	O
in	O
the	O
LTC	O
contribute	O
to	O
various	O
open-source	B-Application
projects	O
as	O
well	O
as	O
projects	O
focused	O
on	O
enabling	O
Linux	B-Application
to	O
use	O
new	O
hardware	O
functions	O
on	O
IBM	O
platforms	O
.	O
</s>
<s>
Linux	B-Application
has	O
run	O
on	O
IBM	B-Device
POWER	I-Device
systems	I-Device
since	O
2001	O
,	O
when	O
a	O
team	O
created	O
a	O
new	O
,	O
64-bit	O
port	O
for	O
the	O
Linux	B-Application
kernel	O
to	O
allow	O
the	O
OS	O
to	O
run	O
on	O
PowerPC	B-Architecture
processors	I-Architecture
.	O
</s>
<s>
The	O
first	O
system	O
to	O
fully	O
support	O
the	O
64-bit	O
Linux	B-Application
kernel	O
was	O
IBM	O
’s	O
POWER5	O
,	O
created	O
in	O
2004	O
.	O
</s>
<s>
Linux	B-Application
was	O
first	O
ported	O
to	O
POWER	B-Device
in	O
June	O
2000	O
.	O
</s>
<s>
Since	O
then	O
PowerLinux	B-Application
was	O
used	O
in	O
a	O
number	O
of	O
supercomputers	O
including	O
MareNostrum	O
2004	O
and	O
Roadrunner	O
2008	O
.	O
</s>
<s>
Beginning	O
in	O
April	O
2012	O
,	O
IBM	O
introduced	O
three	O
POWER7	O
processor-based	O
Linux-specific	O
systems	O
for	O
big	B-Application
data	I-Application
analytics	I-Application
,	O
industry	O
applications	O
and	O
open-source	B-Application
infrastructure	O
services	O
such	O
as	O
Web-serving	O
,	O
email	O
and	O
social	O
media	O
collaboration	O
services	O
.	O
</s>
<s>
The	O
and	O
systems	O
are	O
one	O
-	O
and	O
two-socket	O
,	O
rack-mount	O
servers	O
that	O
support	O
either	O
8	O
or	O
16	O
POWER7	O
microprocessor	O
cores	O
in	O
3.55GHz	O
(	O
7R1	O
only	O
)	O
or	O
,	O
with	O
the	O
7R2	O
,	O
3.55	O
and	O
3.3GHz	O
options	O
with	O
128	O
GB	O
maximum	O
memory	O
(	O
for	O
the	O
7R1	O
)	O
or	O
256	O
GB	O
maximum	O
memory	O
(	O
7R2	O
)	O
that	O
can	O
be	O
configured	O
with	O
8	O
,	O
16	O
and	O
32	O
GB	O
dual	B-General_Concept
inline	I-General_Concept
memory	I-General_Concept
modules	I-General_Concept
(	O
DIMMs	B-General_Concept
)	O
.	O
</s>
<s>
Both	O
systems	O
run	O
Linux	B-Application
operating	I-Application
systems	I-Application
:	O
Red	O
Hat	O
Enterprise	O
Linux	B-Application
or	O
SUSE	O
Linux	B-Application
Enterprise	O
Server	O
and	O
include	O
a	O
built-in	O
PowerVM	O
[	O
for	O
PowerLinux ]	O
hypervisor	O
that	O
supports	O
up	O
to	O
10	O
VMs	O
per	O
core	O
and	O
160	O
VMs	O
per	O
server	O
.	O
</s>
<s>
The	O
IBM	O
PowerLinux	B-Application
7R4	O
is	O
a	O
POWER7+	O
processor-based	O
system	O
in	O
a	O
5U	O
package	O
with	O
two	O
or	O
four	O
sockets	O
and	O
16	O
or	O
32	O
cores	O
.	O
</s>
<s>
PowerVM	O
for	O
Linux	B-Application
dynamically	O
adjusts	O
system	O
resources	O
to	O
partitions	O
based	O
on	O
workload	O
demands-across	O
up	O
to	O
640	O
VMs	O
per	O
server	O
(	O
20	O
micropartitions	O
per	O
core	O
)	O
.	O
</s>
<s>
In	O
a	O
study	O
on	O
systems	O
and	O
architecture	O
for	O
big	B-Application
data	I-Application
,	O
IBM	O
Research	O
found	O
that	O
a	O
10-node	O
Hadoop	B-Application
cluster	O
of	O
PowerLinux	B-Application
7R2	O
nodes	O
with	O
POWER7+	O
processors	O
,	O
running	O
InfoSphere	O
BigInsights	O
software	O
,	O
can	O
sort	O
through	O
a	O
terabyte	O
of	O
data	O
in	O
less	O
than	O
8	O
minutes	O
.	O
</s>
<s>
IBM	O
also	O
introduced	O
the	O
,	O
a	O
Linux-specific	O
two-socket	O
compute	O
node	O
for	O
the	O
recently	O
announced	O
,	O
which	O
contains	O
12	O
or	O
16	O
POWER7	O
microprocessor	O
cores	O
,	O
up	O
to	O
256	O
GB	O
of	O
memory	O
,	O
the	O
option	O
of	O
Red	O
Hat	O
Enterprise	O
Linux	B-Application
or	O
SUSE	O
Linux	B-Application
Enterprise	O
Server	O
operating	O
systems	O
and	O
built-in	O
PowerVM	O
for	O
PowerLinux	B-Application
.	O
</s>
<s>
In	O
addition	O
to	O
these	O
specific	O
products	O
,	O
Linux	B-Application
is	O
capable	O
of	O
running	O
on	O
any	O
Power	B-Device
series	O
hardware	O
.	O
</s>
<s>
The	O
April	O
2012	O
releases	O
by	O
IBM	O
of	O
PowerLinux	B-Application
were	O
designed	O
specifically	O
to	O
run	O
the	O
Linux	B-Application
OS	I-Application
on	O
the	O
company	O
’s	O
POWER7-based	O
systems	O
.	O
</s>
<s>
Unlike	O
servers	O
built	O
on	O
the	O
Intel	B-Device
Xeon	I-Device
processor	O
,	O
an	O
x86	B-Operating_System
descendant	O
with	O
two	O
threads	O
per	O
core	O
,	O
the	O
POWER7	O
processor	O
provides	O
four	O
threads	O
per	O
core	O
.	O
</s>
<s>
POWER-based	O
servers	O
are	O
virtualized	B-General_Concept
to	O
provide	O
60	O
to	O
80	O
percent	O
utilization	O
,	O
compared	O
to	O
a	O
typical	O
40-percent	O
rate	O
for	O
x86	B-Operating_System
processors	O
.	O
</s>
<s>
The	O
PowerVM	O
virtualization	B-Architecture
program	O
has	O
a	O
Common	O
Criteria	O
Evaluation	O
Assurance	O
(	O
CC	O
)	O
level	O
of	O
4+	O
,	O
with	O
zero	O
security	O
vulnerabilities	O
reported	O
,	O
as	O
well	O
as	O
unlimited	O
memory	O
use	O
.	O
</s>
<s>
Power-based	O
IBM	O
systems	O
have	O
built	O
in	O
virtualization	B-Architecture
capabilities	O
derived	O
from	O
mainframe	B-Architecture
technology	O
.	O
</s>
<s>
On	O
System	B-Device
p	I-Device
,	O
this	O
virtualization	B-Architecture
package	O
is	O
referred	O
to	O
as	O
PowerVM	O
.	O
</s>
<s>
PowerVM	O
includes	O
virtualization	B-Architecture
capabilities	O
such	O
as	O
micro-partitioning	O
,	O
active	O
memory	O
sharing	O
,	O
active	O
memory	O
deduplication	O
,	O
a	O
virtual	O
I/O	O
server	O
for	O
virtual	O
networks	O
and	O
storage	O
,	O
and	O
live	O
partition	O
mobility	O
.	O
</s>
<s>
View	O
technical	O
details	O
about	O
PowerVM	O
for	O
PowerLinux	B-Application
.	O
</s>
<s>
PowerLinux	B-Application
runs	O
on	O
:	O
</s>
