<s>
The	O
Cobalt	B-Application
RaQ	I-Application
is	O
a	O
1U	B-Application
rackmount	I-Application
server	O
product	O
line	O
developed	O
by	O
Cobalt	O
Networks	O
,	O
Inc	O
.	O
(	O
later	O
purchased	O
by	O
Sun	O
Microsystems	O
)	O
featuring	O
a	O
modified	O
Red	O
Hat	O
Linux	B-Application
operating	I-Application
system	I-Application
and	O
a	O
proprietary	O
GUI	O
for	O
server	O
management	O
.	O
</s>
<s>
The	O
original	O
RaQ	B-Application
systems	O
were	O
equipped	O
with	O
MIPS	O
RM5230	B-General_Concept
or	O
RM5231	B-General_Concept
CPUs	B-Device
but	O
later	O
models	O
used	O
AMD	O
K6-2	O
chips	O
and	O
then	O
eventually	O
Intel	B-General_Concept
Pentium	I-General_Concept
III	I-General_Concept
CPUs	B-Device
for	O
the	O
final	O
models	O
.	O
</s>
<s>
The	O
Cobalt	B-Application
RaQ	I-Application
was	O
the	O
second	O
product	O
line	O
produced	O
by	O
Cobalt	O
Networks	O
;	O
the	O
first	O
was	O
the	O
Cobalt	B-Application
Qube	I-Application
.	O
</s>
<s>
Below	O
is	O
a	O
list	O
of	O
Cobalt	B-Application
RaQ	I-Application
types	O
,	O
and	O
their	O
specs	O
.	O
</s>
<s>
Under	O
an	O
OEM	O
arrangement	O
,	O
RaQ	B-Application
2	O
units	O
were	O
also	O
produced	O
by	O
Seagate	O
,	O
in	O
the	O
form	O
of	O
the	O
Seagate	O
NasRaQ	O
.	O
</s>
<s>
There	O
were	O
variants	O
of	O
the	O
RaQ	B-Application
3	O
and	O
RaQ	B-Application
4	O
models	O
known	O
as	O
the	O
RaQ	B-Application
3i	O
or	O
RaQ	B-Application
4i	O
(	O
SCSI	B-Architecture
support	O
,	O
two	O
Ethernet	O
connectors	O
,	O
PCI	O
connector	O
)	O
,	O
and	O
the	O
RaQ	B-Application
4r	O
(	O
SCSI	B-Architecture
support	O
,	O
two	O
Ethernet	O
connectors	O
,	O
and	O
RAID	B-Architecture
)	O
.	O
</s>
<s>
RAID	B-Architecture
on	O
these	O
models	O
was	O
accomplished	O
in	O
software	O
using	O
a	O
second	O
IDE	O
channel	O
on	O
the	O
motherboard	O
for	O
the	O
second	O
hard	O
drive	O
.	O
</s>
<s>
There	O
was	O
also	O
a	O
"	O
bare	O
bones	O
"	O
RaQ	B-Application
4	O
model	O
that	O
had	O
a	O
single	O
Ethernet	B-Protocol
adapter	I-Protocol
,	O
no	O
external	O
SCSI	B-Architecture
,	O
and	O
a	O
single	O
hard	O
drive	O
.	O
</s>
<s>
The	O
RaQ	B-Application
3	O
shipped	O
with	O
Chili	O
!	O
soft	O
ASP	O
support	O
.	O
</s>
<s>
The	O
RaQ	B-Application
4	O
added	O
PHP	O
support	O
to	O
the	O
RaQ	B-Application
3	O
payload	O
.	O
</s>
<s>
The	O
RaQ	B-Application
XTR	O
was	O
the	O
first	O
1U	O
server	O
to	O
have	O
four	O
removable	O
hard	O
drives	O
.	O
</s>
<s>
The	O
XTR	O
UI	O
was	O
also	O
a	O
"	O
hybrid	O
"	O
between	O
the	O
newer	O
PHP-based	O
Sausalito	O
system	O
and	O
the	O
older	O
Perl-based	O
"	O
special	O
sauce	O
"	O
that	O
powered	O
the	O
RaQ	B-Application
1	O
-	O
RaQ	B-Application
4	O
.	O
</s>
<s>
Symantec	O
's	O
Veloci	O
Raptor	O
firewall	B-Application
appliances	O
were	O
also	O
based	O
on	O
the	O
RaQ	B-Application
XTR	O
hardware	O
.	O
</s>
<s>
These	O
systems	O
were	O
equipped	O
with	O
an	O
additional	O
2-port	O
network	B-Protocol
card	I-Protocol
.	O
</s>
<s>
Together	O
with	O
the	O
two	O
onboard	O
network	B-Protocol
cards	I-Protocol
the	O
system	O
had	O
four	O
network	O
interfaces	O
.	O
</s>
<s>
The	O
RaQ	B-Application
550	O
was	O
the	O
final	O
appliance	O
from	O
the	O
Cobalt	O
division	O
.	O
</s>
<s>
It	O
added	O
Java	O
support	O
to	O
the	O
RaQ	B-Application
4	O
payload	O
,	O
and	O
was	O
the	O
first	O
RaQ	B-Application
to	O
use	O
only	O
the	O
Sausalito	O
UI	O
originated	O
in	O
the	O
Qube	O
3	O
.	O
</s>
<s>
Examples	O
are	O
BlueQuartz	O
,	O
maintained	O
by	O
a	O
group	O
of	O
Japanese	O
fans	O
,	O
BlueOnyx	O
maintained	O
by	O
former	O
Cobalt	B-Application
RaQ	I-Application
consultants	O
and	O
RackStar	O
,	O
an	O
initiative	O
of	O
RAQTweak	O
(	O
Cobalt	B-Application
RAQ	I-Application
consultants	O
)	O
and	O
several	O
ex-Sun/Cobalt	O
engineers	O
such	O
as	O
Tim	O
Hockin	O
and	O
Patrick	O
Baltz	O
.	O
</s>
<s>
The	O
installation	O
of	O
a	O
standard	O
Linux	B-Application
distribution	O
on	O
the	O
newer	O
x86-based	O
RaQs	B-Application
is	O
possible	O
.	O
</s>
<s>
The	O
installation	O
of	O
a	O
distribution	O
based	O
on	O
the	O
Linux	B-Operating_System
2.6	I-Operating_System
kernel	B-Operating_System
,	O
or	O
newer	O
,	O
requires	O
either	O
the	O
replacement	O
of	O
the	O
ROM	O
software	O
(	O
the	O
RaQ	B-Application
does	O
not	O
have	O
a	O
typical	O
bios	O
)	O
,	O
or	O
the	O
use	O
of	O
chain	O
loading	O
.	O
</s>
