LPA

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

Defining LPA

You can define the LPA system initialization parameter in the following ways:
  • On the PARM parameter of the EXEC PGM=DFHSIP statement
  • In the SYSIN data set of the CICS start up job stream
  • Through the system console
  • In the DFHSIT macro

Values for LPA

Valid values for the LPA system initialization parameter are as follows:

LPA={NO|YES}
Valid values are as follows:
NO
NO is the default value for LPA. will not load CICS or user modules from the link pack areas.
YES

CICS or user modules 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, therefore eligible for residence in the link pack areas (LPA or ELPA), is contained in a member called DFH$UMOD in the SMP/E USERMOD that is supplied in the CICSTSnn.CICS.SDFHSAMP library, where CICSTSnn is your version of CICS. For example, for CICS Transaction Server for z/OS®, beta, this is CICSTS64.CICS.SDFHSAMP.

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For details of the CICS system initialization parameter PRVMOD that you can use to override LPA=YES for selected modules, see PRVMOD.