Access type and the population utilities in a multi-system environment

When the IMS catalog is shared by multiple systems, you can add records to the catalog by executing the utility that populates the catalog as a DL/I batch job, otherwise you can execute the utility as a BMP job.

If the utility is run as a BMP, the type of database access that the IMS catalog database allows might need to be changed. By default the IMS catalog allows only read access. To load or update the IMS catalog in BMP mode, the IMS catalog database must be changed to allow update access.

You can set the default access type for the IMS catalog by specifying the ACCESS= parameter in the CATALOG section of the DFSDFxxx member. Unless the IMS management of ACBs is enabled, the default access type for the IMS catalog is ACCESS=READ. When IMS manages ACBs, the default access type is ACCESS=UPDATE.