USEDDL


1 USEDDL=
2.1! N
2.1 Y
USEDDL
Specifies whether or not FM/IMS uses the IMS Data Definition utility (DFS3ID00) to generate dynamic PSBs when IMS management of ACBs is enabled (ACBMGMT=CATALOG).
N
FM/IMS does not use the Data Definition utility.
These utilities are used instead:
  • The PSB Generation utility
  • The IMS Catalog Library Builder utility (DFS3LU00)
  • The ACB Maintenance utility
  • The IMS Catalog Populate utility (DFS3PU00)
Y
Dynamic PSBs are generated by submitting Data Definition Language (DDL) statements to the Data Definition utility.

USEDDL=Y is the recommended setting.

These are the prerequisites for running the Data Definition utility:
  • You are running IMS 15.3 or later with APAR/PTF PH45367/UI81894 installed.
  • IMS management of ACBs is enabled (ACBMGMT=CATALOG).
Note: The USEDDL parameter is not used when the ACBs are managed by your installation (ACBMGMT=ACBLIB).

This parameter is optional. If it is not specified on the FMN1POPI macro statement, FM/IMS uses either the value specified on the FMN1POPD macro statement (if specified on that statement), or N (otherwise).