Space announcement We are no longer updating this version of the documentation for the infrastructure components (DBC, LGC, and NGL).  You can no longer leave comments on it. For the latest version of the documentation, see Common Mainframe Infrastructure 2022 release.

STEPLIB DD statement

The RTCS Initiator internally passes the DSNAMEs of the data sets that are used by the RTCS subsystem and the RTCS Generalized Server address spaces in z/OS ECSA storage.

The RTCS Initiator obtains the DSNAME of the RTCS subsystem program library (POSZRTCS) from the STEPLIB DD statement of the RTCS Initiator address space started task PROC JCL. The RTCS subsystem address space dynamically allocates this data set, loads the RTCS kernel and DLLs, and deallocates the program library to enable maintenance to be performed by using SMP/E.

The DSNAME of the RTCS subsystem program library (which is specified by the STEPLIB DD statement of the RTCS Initiator started task PROC JCL) is used as the model to determine the default DSNAMEs of the other RTCS data sets used by the RTCS subsystem and the RTCS Generalized Server. The data set prefix (the part up to but not including the low-level index) is determined and the low-level index is examined to see if it is xOSZRTCS, where x is any character. If it is xOSZRTCS, the default DSNAMEs of all of the other data sets will be constructed from the POSZRTCS DSNAME prefix and their own individual, appropriate low-level index, such as xOSZLINK, xOSZHTML, xOSZPSWD, and REGISTRY.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*