
Using VSE/POWER PDISPLAY, POFFLOAD and Printer/Punch Tape Spooling
7-52 User Reference
Connectivity Systems, Inc.—Copyright © 2006
Use Pursuant to Company Instructions
Using VSE/POWER PDISPLAY, POFFLOAD and
Printer/Punch Tape Spooling
Description With the introduction of standard label support for POWER tape spooling
of print data, punch data, and POFFLOAD tapes, it is possible to use
BIM-EPIC controlled tapes and dataset names for these functions even
though some restrictions apply. To invoke BIM-EPIC control of these
tape datasets, specify the TLBL= operand and the LTAPE= operand in
the appropriate VSE/POWER command or JECL control statement.
DSN Catalog BIM-EPIC datasets must be defined to the BIM-EPIC Catalog only as
prime datasets. Do not attempt to use sub-datasets. POWER may
successfully write data to sub-datasets, but may be unable to read it
because additional tape marks may be imbedded within that data.
Datasets may be cataloged as unlabeled. However, because VSE/POWER
is not able to recognize unlabeled multi-volume versions beyond the first
volume, labeled data sets are preferred. If unlabeled datasets are used, it is
your responsibility to recognize the presence of unlabeled multiple
volumes within a version. The remaining volumes can be processed with
additional VSE/POWER commands.
JCL
Requirements
There are several JCL requirements you must consider.
The actual TLBL control statement referenced by the TLBL=
operand MUST be stored in the standard label area, the
VSE/POWER partition label area, or the VSE/POWER user label
area.
LUB allocation must be inhibited since VSE/POWER will
dynamically choose a SYS number to use.
VSE/POWER continues to make and release tape device
assignments. This prevents BIM-EPIC from doing Automatic
Volume Recognition (AVR). VSE/POWER determines which
tape drive to use in PDISPLAY or POFFLOAD commands, or in
the TADDR operand on the * $$ LST or * $$ PUN JECL
statements. If the TADDR operand is not specified, the operator
response to the console message 1Q55D SPECIFY TAPE
ADDRESS will be used.
If the output fills more than a single tape volume, VSE/POWER
will invoke VSE/SAM End-of-Volume procedures, unload the
current tape, and issue the message:
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