Currently running DCOM R12 SP0 and upgrading to 14.0. I have CUSLIB in steplib, but don't see allocation in 14.0. Is CUSLIB part of DCOM/DB?
Yes there is a CUSLIB in CA Datacom/AD 14.0. That CUSLIB is allocated in job AXCUS01 (Step ALLCCUS).
CUSLIB contains all the customized modules coming from the AD 14.0 macros like DBSYSID...
These macros are ASM/LINKed in AXCUS01 as well.
AXCUS01 job can be seen in INSTJCL library (Installation library).
Title: *README: STATUS OF CA DATACOM/AD VERSION 14.0 Z/OS