Protecting the control data sets

You need to protect three types of SMS data sets:

Control data sets
- SCDS
- ACDS
- COMMDS
ACS Routine Source Data Sets
- Partitioned data sets whose members are source ACS routines
- Sequential data sets that contain one source ACS routine.
ACS Routine test library
- Partitioned data sets whose members are ACS test cases.

You can issue SECURITY from the command line of the ISMF Data Set Application to protect these data sets. You can give universal read access to ACDS, COMMDS, and SCDS to anyone. Anyone who is authorized to update an SCDS or an ACS routine source data set is also authorized to change any items within these data sets.