Creating an initialization data set

The initialization data set can be access directly through a DD in the JES2 procedure or it can be a member of the MVS™ default PARMLIB concatenation. A sample initialization data set (HASIPARM) contains templates that you can modify for a particular installation. Before modifying the sample data set, see Defining the data set for JES2 initialization parameters.

You can mix the operator commands and the patching facility, AMASPZAP, and initialization control statements among the initialization statements without any special coding requirements. Sample JES2 initialization data set and HASPLIST corrections shows an example of an initialization data set that contains operator commands and initialization control statements. New data sets or members of the default PARMLIB concatenation can be processed using the INCLUDE statement.

The initialization data set should be protected to prevent disclosing passwords contained on initialization statements, such as NODE, LINE, LOGON, and RMT statements. If a security product is used, ensure that no one can access the data set. If an installation uses RACF®, specifying UACC=NONE for the data set provides this protection.