<s>
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
is	O
a	O
discontinued	O
port	O
of	O
the	O
OpenSolaris	B-Operating_System
operating	O
system	O
to	O
the	O
IBM	B-Device
System	I-Device
z	I-Device
line	O
of	O
mainframe	B-Architecture
computers	I-Architecture
.	O
</s>
<s>
OpenSolaris	B-Operating_System
is	O
based	O
on	O
Solaris	B-Application
,	O
which	O
was	O
originally	O
released	O
by	O
Sun	O
Microsystems	O
in	O
1991	O
.	O
</s>
<s>
Sun	O
released	O
the	O
bulk	O
of	O
the	O
Solaris	B-Application
system	O
source	O
code	O
in	O
OpenSolaris	B-Operating_System
on	O
14	O
June	O
2005	O
,	O
which	O
made	O
it	O
possible	O
for	O
developers	O
to	O
create	O
other	O
OpenSolaris	B-Operating_System
distributions	O
.	O
</s>
<s>
Sine	O
Nomine	O
Associates	O
began	O
a	O
project	O
to	O
bring	O
OpenSolaris	B-Operating_System
to	O
the	O
IBM	O
mainframe	B-Architecture
in	O
July	O
,	O
2006	O
.	O
</s>
<s>
The	O
project	O
was	O
named	O
Sirius	O
(	O
in	O
analogy	O
to	O
the	O
Polaris	O
project	O
to	O
port	O
OpenSolaris	B-Operating_System
to	O
PowerPC	O
)	O
.	O
</s>
<s>
In	O
April	O
,	O
2007	O
,	O
Sine	O
Nomine	O
presented	O
an	O
initial	O
progress	O
report	O
at	O
IBM	O
's	O
System	B-Device
z	I-Device
Technical	O
Expo	O
conference	O
.	O
</s>
<s>
At	O
the	O
Gartner	O
Data	O
Center	O
Conference	O
in	O
Las	O
Vegas	O
,	O
Nevada	O
in	O
late	O
2007	O
,	O
Sine	O
Nomine	O
demonstrated	O
OpenSolaris	B-Operating_System
running	O
on	O
IBM	B-Device
System	I-Device
z	I-Device
under	O
z/VM	B-Application
.	O
</s>
<s>
It	O
was	O
there	O
that	O
David	O
Boyes	O
of	O
Sine	O
Nomine	O
stated	O
that	O
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
would	O
be	O
available	O
"	O
soon.	O
"	O
</s>
<s>
At	O
the	O
SHARE	O
conference	O
on	O
13	O
August	O
2008	O
,	O
Neale	O
Ferguson	O
of	O
Sine	O
Nomine	O
Associates	O
presented	O
an	O
update	O
on	O
the	O
progress	O
of	O
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
.	O
</s>
<s>
This	O
presentation	O
included	O
a	O
working	O
demonstration	O
of	O
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
.	O
</s>
<s>
During	O
this	O
presentation	O
he	O
stated	O
that	O
while	O
OpenSolaris	B-Operating_System
is	O
"	O
not	O
ready	O
for	O
prime-time	O
"	O
they	O
hoped	O
to	O
have	O
a	O
version	O
available	O
to	O
the	O
public	O
for	O
testing	O
"	O
in	O
a	O
matter	O
of	O
weeks	O
rather	O
than	O
months.	O
"	O
</s>
<s>
In	O
October	O
,	O
2008	O
,	O
Sine	O
Nomine	O
Associates	O
released	O
the	O
first	O
"	O
prototype	O
"	O
(	O
it	O
lacks	O
a	O
number	O
of	O
features	O
such	O
as	O
DTrace	B-Application
,	O
Solaris	B-Application
Containers	O
and	O
the	O
ability	O
to	O
act	O
as	O
an	O
NFS	B-Protocol
server	O
)	O
of	O
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
to	O
the	O
public	O
.	O
</s>
<s>
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
has	O
a	O
project	O
page	O
at	O
OpenSolaris.org	B-Operating_System
.	O
</s>
<s>
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
is	O
available	O
for	O
download	O
at	O
no	O
charge	O
,	O
and	O
is	O
governed	O
by	O
the	O
same	O
open	O
source	O
license	O
terms	O
as	O
OpenSolaris	B-Operating_System
for	O
other	O
platforms	O
.	O
</s>
<s>
The	O
port	O
uses	O
z/Architecture	B-Device
64-bit	O
addressing	O
and	O
therefore	O
requires	O
an	O
IBM	B-Device
System	I-Device
z	I-Device
mainframe	B-Architecture
.	O
</s>
<s>
Because	O
the	O
port	O
depends	O
on	O
recently	O
defined	O
z/Architecture	B-Device
processor	O
instructions	O
,	O
it	O
requires	O
a	O
System	B-Device
z9	I-Device
or	O
later	O
mainframe	B-Architecture
model	O
and	O
will	O
not	O
run	O
on	O
older	O
machines	O
.	O
</s>
<s>
It	O
also	O
will	O
not	O
run	O
on	O
the	O
release	O
version	O
of	O
Hercules	B-Application
mainframe	B-Architecture
emulator	O
,	O
the	O
needed	O
changes	O
are	O
included	O
in	O
the	O
SVN	O
version	O
5470	O
of	O
Hercules	B-Application
.	O
</s>
<s>
It	O
also	O
requires	O
the	O
paravirtualization	O
features	O
provided	O
by	O
z/VM	B-Application
;	O
it	O
will	O
not	O
run	O
on	O
"	O
bare	O
metal	O
"	O
or	O
in	O
a	O
logical	B-Device
partition	I-Device
(	O
LPAR	B-Device
)	O
without	O
the	O
z/VM	B-Application
hypervisor	O
at	O
Version	O
5.3	O
level	O
or	O
later	O
.	O
</s>
<s>
Also	O
,	O
because	O
OpenSolaris	B-Operating_System
uses	O
a	O
new	O
network	O
DIAGNOSE	O
instruction	O
,	O
PTF	O
VM64466	O
or	O
VM64471	O
must	O
be	O
applied	O
to	O
z/VM	B-Application
to	O
provide	O
support	O
for	O
that	O
instruction	O
.	O
</s>
<s>
On	O
18	O
November	O
2008	O
,	O
IBM	O
authorized	O
the	O
use	O
of	O
IFL	B-Application
processors	O
to	O
run	O
OpenSolaris	B-Application
for	I-Application
System	I-Application
z	I-Application
workloads	O
.	O
</s>
