ACBMGMT

ACBMGMT

Specifies how the active application control blocks (ACBs) are managed, as indicated by the ACBMGMT parameter in the CATALOG section of the DFSDFxxx PROCLIB member.

ACBLIB: The active ACBs are managed by your installation in ACBLIB data sets.
CATALOG: The active ACBs are managed by IMS™ in the IMS directory data sets of the IMS catalog.

When ACBMGMT=ACBLIB is specified:

FM/IMS gets the DBDs and PSBs from the specified DBD and PSB libraries. (See DBDLIBn and PSBLIBn.)
The PSB Generation utility and the ACB Maintenance utility are used to generate dynamic PSBs.

When ACBMGMT=CATALOG is specified:

FM/IMS gets the DBDs and PSBs from the IMS catalog through the IMS catalog API.
When USEDDL=Y is specified, the IMS Data Definition utility is used to generate dynamic PSBs. Otherwise, the PSB Generation utility, the IMS Catalog Library Builder utility, the ACB Maintenance utility and the IMS Catalog Populate utility are used.

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 ACBLIB (otherwise).

The user cannot override the value you specify for this parameter.