CA Dynam for VSE User Guide

Using Other Software with CA Dynam/FI
Using One IOAREA and IOREG
CA Dynam/FI will always set up the I/O register (IOREG) if one is specified in
the program DTF. Programs that indicate an IOREG but ignore the information
passed in it will have unexpected results.
CA Dynam/FI does not support PL/1 programs that have a DTF with one
IOAREA and unblocked record format. The PL/1 compiler establishes DTFs with
IOREG specified. If the DTF has one IOAREA and unblocked record format,
however, the IOREG values are ignored. In order to force usage of the IOREG
values, the PL/1 option 'BUFFERS=2' must be specified.
Limiting File-independence Processing
Due to the nature of changes made to control blocks during file independence,
it may be advantageous at times not to have DYNAM/FI processing active. The
following chart reviews the ways that you may "turn off" DYNAM/FI. Each of
the commands is explained in detail elsewhere in this manual.
To Cause CA Dynam/FI To
Bypass processing for the
particular phases (programs)
Be deactivated. FI will not be
invoked by the System Adapter
at intercepts (SVC 2 and 4)
and AR commands.
Ignore cataloged information
for a particular file
Ignore processing for a
particular file. No DTF changes
will be made for the file
Not access cataloged
information for any files in the
DYNAM Catalog
Turn off all CA Dynam/FI
processing in a specific partition
until specifically reset (SET
DYNAM/FI ON) or, in the case of
dynamic partitions, until end of
the POWER/VSE job
Turn off processing of files at
OPEN/CLOSE. No DTF changes
will be made.
Specify Statement/Parameter
EXCPPGM=(phase1,phase2,...phasen) (in
DFEXCL option record)
DISABLE DYNAM/FI (with CASAUTIL)
DYNAMFI=NO (defined for cataloged file
using DYNCAT)
NOFI (on TLBL/DLBL)
CATALOG(NO) (in DYNAM/FI option record)
[//] SET DYNAM/FI OFF
[//] SET FIPROG OFF
6–42 User Guide