For the START-/LOAD-EXECUTABLE-PROGRAM, CALL-PROCEDURE, ENTER-PROCEDURE and ENTER-JOB commands the user should specify $filename instead of filename.
For instance, if START-EXECUTABLE-PROGRAM FROM-FILE=$EDT is entered, the user ID specified with DEFLUID is referenced immediately.
If START-EXECUTABLE-PROGRAM FROM-FILE=EDT is entered, a file with the name EDT is first searched for under the calling user ID, and then under the user ID specified with DEFLUID.The system administration should specify a suitable value for secondary allocation when the system is generated (system parameter DMSCALL), because the secondary allocation of storage space is very time-consuming as the corresponding catalog entry is changed with every user task request.
To prevent saturation of the public storage space it is advisable to release storage space not used by user files. The system administration can create procedures for this purpose. See section “Monitoring storage space saturation”