IBM OS/390 Manuel D’Utilisation

Table 13 (Page 2 of 2). POWER/JES2 Output Service Comparison

End-of-Page sensing

Y

N

See 10.1.1.6,
“End-of-page S e n s i n g ”
on page 209

Counting Line Mode
Output

Y   ( P a g e s   =

skip to Ch.1)

Y (Lines)

Set PRINTDEF
NEWPAGE=1

Counting Page Mode
Output

Y (Pages)

Y (Pages)

Restart capability for
interrupted output

Y

(PRESTART)

Y

A u t o m a t i c checkpoint
r e s t a r t

POWER and JES2 support the same set of channel-attached printers:

•

1403, 3211, 3203, 4245, and 4248 impact printers

•

3262-5 and 6262 as a 3211

•

3800-1 for line mode printing

•

3800-3, 3900, and other AFP printers through PSF

With POWER, the VSE installation has the ability to segment job output; this
provides POWER the ability to print or punch output before a job is finished. It
also allows the operator to have operational control over each segment created.

VSE/POWER supports output segmentation by record count thresholds, by
specification in the input stream, and by specification in the program. Output
segmentation can be used to improve turnaround time for jobs that have large
volumes of output.

JES2 supports output segmentation with the SEGMENT= parameter on the
SYSOUT DD statement (or on the dynamic allocation request). To support it at
the installation level, use a JES2 Exit (6 or 31).

With JES2, job output processing (printing and punching) normally starts when
the job completes. The MVS JCL parameter FREE=CLOSE or SPIN=UNALLOC
on SYSOUT DD statements can be used to make these files available for printing
or NJE transmission as soon as they are closed or unallocated. Then, the output
produced for these SYSOUT files is processed when the files are CLOSEd by the
application using them. Additionally, the application program can use MVS
dynamic allocation services to spin off sections of output for immediate printing.

You can also use the SETPRT macro to schedule the data already written to
spool for immediate printing.

Tape spooling is not supported in JES2. See 10.1.1.3, “Tape Spooling” on
page 208 for some alternatives.

VSE to OS/390 Migration Workbook