LPA

The LPA system initialization parameter specifies whether CICS and user modules can be used from the link pack areas.

LPA={NO|YES}
Valid values are as follows:
NO
will not load CICS or user modules from the link pack areas.
YES
CICS or usermodules installed in the LPA or in the ELPA can be used from there, instead of being loaded into the CICS region.

A list of the CICS modules that are read-only, and hence eligible for residence in the link pack areas (LPA or ELPA), are contained in the SMP/E USERMOD supplied on the distribution tape in the CICSTS52.CICS.SDFHSAMP, in a member called DFH$UMOD. For details of the CICS system initialization parameter PRVMOD that you can use to override LPA=YES for selected modules, see topic PRVMOD.