The hdbsetup has UR : Upgrade SCM Repository option, which creates a $CA_SCM_HOME/updatesschema.log, but if an error happens, sometimes there is not sufficient information about the error to diagnose and correct the problem.
CA Harvest SCM all versions and platforms
A parameter must be set in the HServer.arg file to increase the logging level.
Edit the Hserver.arg file and add the following line:
Save and close the file, then exit HDBSetup and restart it. When you run the upgrade again with option “UR”, additional logging will be added to the updateschema.log file.