CICS storage requirements

Memory requirements to run Java programs are higher than for conventional programs. Therefore:
  1. You should ask your CICS system programmer to set the value of the EDSALIM system initialization parameter to a minimum of 200MB, otherwise a short-on-storage condition may occur.

    Note that you cannot change the value of EDSALIM during CICS execution by means of CEMT SET commands. Furthermore, dynamic changes to EDSALIM are cataloged in the local catalog, and the value in the local catalog overrides the EDSALIM parameter specified in the system initialization table during all forms of restart: initial,cold, and warm. Therefore, to change EDSALIM, you must specify it as a system initialization table override or re-initialize the CICS catalog data sets.

  2. Your CICS job should set a minimum REGION value of 400MB.