Spooler Utilities Reference Manual

Migration Considerations for Pre-D41 Spooler
Versions
Spooler Utilities Reference Manual—522295-003
H-4
D41,D46, D48 Common Enhancements and
Changes
D41,D46, D48 Common Enhancements and
Changes
Compared to older product versions of the Spooler subsystem, the D41 release of the
Spooler subsystem includes the following enhancements and changes; these
enhancements and changes are included in the D46 and D48 versions of the Spooler:

Increased object and resource limits

New collector file requirements

New collector data file requirements

Improved collector performance

New collector data file UNIT and DP2 BUFFERSIZE settings

Older-version collector files required for older-version jobs

More collector openers per collector

Support for warmstarting from older-version spooler control files

Changes to Spoolcom commands

Changes to Spooler library procedures and structures

New versions of print processes

Increased extended memory

New Event Message Service (EMS) event messages

Increased support for Failure Data System (TFDS)

Reduced support for PSPOOL and PSPOOLB print processes
These enhancements and changes are described in detail in the remainder of this
appendix.
Increased Object and Resource Limits
Table H-1 shows the object and resource limits that have changed in the D41 release
of the Spooler subsystem.
New Collector File Requirements
The format of the collector data file has been significantly altered. The new file format
eliminates the space allocation constraints of previous collector designs and results in
more efficient collection. You must create new collector data files in order to use the
D41 or D46, or D48 Spooler product.
Table H-1. D40 Spooler and D41 Spooler Limits Comparison
Object or Resource D40 Spooler D41 Spooler
Collector buffer size 1K 2K or a multiple of 2K
Maximum collector openers 256 1024
Maximum supervisor openers 70 1024
Units per collector file 8K Limited only by file size