We are having problems starting up MSMTC on z/OS 2.1 for the first time. This is the first attempt to start CA CSM on our z/OS 2.1 system. We did not have this issue on z/OS 1.13.
The output of the MSMTC task reveals the following:
CEE3798I ATTEMPTING TO TAKE A DUMP FOR ABEND U4093 TO DATA SET: MSMTC.xx
This type of abend usually points to an IBM LE environmental error.
Ensure that the userid assigned to the MSMTC task is setup with a valid OMVS segment. This generally means it needs to be defined an OMVSGROUP, an OMVS UID, an OMVSPGM, and an OMVS HOME directory. Check with your specific security product for minimum requirements and make sure the directory specified for OMVS Home actually exists and Read/Write access is granted. A recommendation for this directory is to use the USS directory path defined for CA CSM.
Note: The default path is /u/users/msmserv
Starting with z/OS 2.1, IBM has eliminated the security calls related to BPX.DEFAULT.USER. In doing so, IBM is enforcing the requirement that all Unix Systems Services (USS) work requires the userid (ACID) to have established USS credentials. This includes a unique UID, assigned default group and Home.