<s>
The	B-Application
Google	I-Application
Search	O
Appliance	O
(	O
GSA	O
)	O
was	O
a	O
rack-mounted	O
computer	O
device	O
that	O
provided	O
document	O
indexing	O
functionality	O
.	O
</s>
<s>
The	O
GSA	O
operating	B-General_Concept
system	I-General_Concept
was	O
based	O
on	O
CentOS	O
.	O
</s>
<s>
The	O
software	O
was	O
produced	O
by	O
Google	B-Application
and	O
the	O
hardware	O
was	O
manufactured	O
by	O
Dell	O
.	O
</s>
<s>
The	O
final	O
2009	O
GSA	O
version	O
was	O
based	O
on	O
Dell	O
's	O
PowerEdge	B-Device
R710	O
.	O
</s>
<s>
Google	B-Application
announced	O
the	O
phase	O
out	O
of	O
the	O
GSA	O
in	O
early	O
2016	O
and	O
a	O
complete	O
discontinuation	O
by	O
2019	O
.	O
</s>
<s>
The	O
GSA	O
contained	O
Google	B-Application
search	I-Application
technologies	O
and	O
a	O
means	O
of	O
configuring	O
and	O
customizing	O
the	O
appliance	O
.	O
</s>
<s>
Google	B-Application
released	O
version	O
7.0	O
on	O
October	O
9	O
,	O
2012	O
and	O
version	O
7.2	O
on	O
February	O
11	O
,	O
2014	O
.	O
</s>
<s>
Google	B-Application
sold	O
a	O
2U	O
appliance	O
(	O
GB-1001	O
)	O
capable	O
of	O
indexing	O
up	O
to	O
5,000,000	O
documents	O
,	O
a	O
half-rack	O
cluster	O
(	O
GB-5005	O
)	O
of	O
five	O
2U	O
nodes	O
capable	O
of	O
indexing	O
up	O
to	O
10,000,000	O
documents	O
,	O
and	O
a	O
full-rack	O
cluster	O
(	O
GB-8008	O
)	O
of	O
eight	O
and	O
later	O
twelve	O
nodes	O
capable	O
of	O
indexing	O
up	O
to	O
30,000,000	O
documents	O
.	O
</s>
<s>
Some	O
models	O
were	O
based	O
on	O
Dell	B-Device
PowerEdge	I-Device
2950	O
2U	O
rackmount	O
servers	O
.	O
</s>
<s>
The	B-Application
Google	I-Application
Mini	O
was	O
a	O
smaller	O
and	O
lower-cost	O
solution	O
that	O
occupied	O
1U	O
of	O
rack	O
space	O
for	O
small	O
and	O
medium-sized	O
businesses	O
to	O
set	O
up	O
a	O
search	B-Application
engine	I-Application
that	O
allowed	O
them	O
to	O
index	O
and	O
search	O
up	O
to	O
300,000	O
documents	O
.	O
</s>
<s>
The	B-Application
Google	I-Application
Mini	O
was	O
discontinued	O
beginning	O
July	O
31	O
,	O
2012	O
.	O
</s>
<s>
For	O
a	O
brief	O
period	O
in	O
2008	O
Google	B-Application
offered	O
a	O
virtual	O
version	O
of	O
the	O
GSA	O
aimed	O
at	O
developers	O
.	O
</s>
<s>
The	O
virtual	O
edition	O
could	O
be	O
downloaded	B-Application
free	O
of	O
charge	O
and	O
index	O
up	O
to	O
50,000	O
documents	O
.	O
</s>
<s>
Early	O
in	O
February	O
2016	O
,	O
Google	B-Application
sent	O
a	O
confidential	O
letter	O
to	O
its	O
business	O
partners	O
and	O
customers	O
,	O
stating	O
that	O
the	O
GSA	O
would	O
not	O
be	O
available	O
past	O
2018	O
.	O
</s>
<s>
Customers	O
were	O
expected	O
to	O
migrate	O
to	O
a	O
cloud-based	B-Architecture
solution	O
.	O
</s>
