<s>
The	O
System	O
Display	O
and	O
Search	O
Facility	O
(	O
SDSF	B-Application
)	O
is	O
a	O
component	O
of	O
IBM	O
's	O
mainframe	B-Device
operating	O
system	O
,	O
z/OS	B-Application
,	O
is	O
an	O
interactive	O
user	O
interface	O
that	O
allows	O
users	O
and	O
administrators	O
to	O
view	O
and	O
control	O
various	O
aspects	O
of	O
the	O
mainframe	B-Device
's	O
operation	O
and	O
system	O
resources	O
.	O
</s>
<s>
Some	O
of	O
the	O
information	O
displayed	O
in	O
SDSF	B-Application
includes	O
Batch	B-General_Concept
job	I-General_Concept
output	O
,	O
Unix	B-Application
processes	O
,	O
scheduling	O
environments	O
,	O
and	O
the	O
status	O
of	O
external	O
devices	O
such	O
as	O
printers	O
and	O
network	O
lines	O
.	O
</s>
<s>
SDSF	B-Application
is	O
primarily	O
used	O
to	O
access	O
batch	O
and	O
system	O
log	O
files	O
and	O
dumps	O
.	O
</s>
<s>
When	O
it	O
was	O
a	O
field-developed	B-General_Concept
program	O
offering	O
,	O
SDSF	B-Application
was	O
known	O
as	O
the	O
SPOOL	B-Device
Display	O
and	O
Search	O
Facility	O
The	O
word	O
SPOOL	B-Device
was	O
changed	O
to	O
System	O
when	O
it	O
became	O
a	O
program	B-Application
product	I-Application
in	O
the	O
late	O
1980s	O
.	O
</s>
<s>
With	O
z/OS	B-Application
Release	O
1.9	O
,	O
SDSF	B-Application
supports	O
a	O
REXX	B-Language
interface	O
,	O
allowing	O
batch	B-General_Concept
programs	I-General_Concept
to	O
use	O
SDSF	B-Application
facilities	O
.	O
</s>
<s>
This	O
support	O
includes	O
stem	O
variables	O
containing	O
SDSF-originated	O
information	O
.	O
</s>
<s>
Prior	O
to	O
z/OS	B-Application
Release	O
1.10	O
,	O
SDSF	B-Application
was	O
only	O
supported	O
for	O
use	O
with	O
JES2	B-Application
and	O
not	O
JES3	B-Application
,	O
although	O
ISV	B-Application
products	O
from	O
Phoenix	O
Software	O
International	O
and	O
Tone	O
Software	O
were	O
available	O
with	O
similar	O
functionality	O
for	O
JES3	B-Application
.	O
</s>
<s>
At	O
and	O
beyond	O
z/OS	B-Application
Release	O
1.10	O
,	O
SDSF	B-Application
fully	O
supports	O
JES3	B-Application
,	O
including	O
some	O
new	O
commands	O
(	O
JDS	O
and	O
ODS	O
)	O
to	O
display	O
the	O
data/sets	O
and	O
job	O
output	O
for	O
JES3	B-Application
jobs	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
z/OS	B-Application
V1R13	O
,	O
SDSF	B-Application
came	O
packed	O
with	O
some	O
interesting	O
features	O
like	O
cursor-sensitive	O
sort	O
or	O
point-and-shoot	O
sort	O
and	O
extensive	O
support	O
for	O
open	O
logs	O
from	O
Rexx	B-Language
and	O
Java-programmed	O
environments	O
.	O
</s>
<s>
SDSF	B-Application
is	O
organized	O
as	O
a	O
collection	O
of	O
panels	O
where	O
each	O
panel	O
displays	O
information	O
about	O
a	O
specific	O
aspect	O
of	O
the	O
mainframe	B-Device
's	O
operations	O
.	O
</s>
<s>
I	O
:	O
Input	O
Queue	B-Device
-	O
shows	O
jobs	O
waiting	O
execution	O
.	O
</s>
<s>
H	O
:	O
Jobs	O
on	O
HOLD	O
-	O
either	O
waiting	O
to	O
be	O
released	O
into	O
Input	O
or	O
Output	O
or	O
actual	O
copies	O
of	O
job	O
JCL	O
(	O
Job	B-Application
Control	I-Application
Language	I-Application
)	O
or	O
previously	O
executed	O
jobs	O
.	O
</s>
<s>
On	O
the	O
ST	O
panel	O
,	O
SDSF	B-Application
supports	O
the	O
following	O
commands	O
for	O
each	O
batch	B-General_Concept
job	I-General_Concept
.	O
</s>
<s>
These	O
commands	O
are	O
translated	O
into	O
a	O
JES2	B-Application
or	O
JES3	B-Application
command	O
that	O
performs	O
the	O
desired	O
function	O
:	O
</s>
