Installing CICSPlex SM modules into the LPA

In this context, the term install means to move or copy a module to the SYS1.CICSTS53.CPSM.SEYULPA library by using SMP/E, or by using a copying method that reblocks the copied modules when the target data set has a smaller block size than the data set you are copying from; for example, by using the COPYMOD function of the IEBCOPY program.

CICSPlex SM modules that are eligible for inclusion in the link pack area are listed in CICSPlex SM modules eligible for the MVS link pack area.

CICSPlex® SM creates default definitions for the LPA-eligible modules specifying USELPACOPY(YES). So you do not have to modify these definitions to be able to search the LPA. You can, however, specify that the LPA is searched by using the CICS system initialization parameters LPA and PRVMOD. Specify LPA=YES for CICS to search the LPA for these programs. If you specify LPA=NO, which is the default, the LPA is not searched for these programs.

If you specify LPA=YES but have not moved the modules to the LPA, message DFHLD0109I is issued for each module. If you specify LPA=YES and have moved these modules to the LPA, you can use the PRVMOD system initialization parameter to control which modules are to be used from the LPA. See Using modules from DFHRPL for more information.

Do not relink-edit the modules to put them into the SYS1.CICSTS53.CPSM.SEYULPA library. CICSPlex SM modules, as supplied, have the necessary attributes that cause MVS™ to load them automatically above 16 MB (into the ELPA).

The MVS link pack area has both pageable and fixed areas. Although you can install CICSPlex SM modules into the fixed areas, for performance reasons, use the pageable areas.

Modules to be loaded into the MVS pageable link pack area (PLPA) must have been link-edited with the RENT attribute. The library that contains these modules must be named in an LPALSTxx member of the SYS1.PARMLIB library.