After completing the upgrade the backup was run but returned the following error message.
Warning: the config parameter 'verticaConfig' has been deprecated.
All supported CA Performance Management systems post upgrade can be impacted
When the Vertica database management software on the Data Repository hosts is upgraded, it often comes with code changes (fixes and new functionality) to the vbr.py script that runs the backups. These changes can also impact the *.ini backup configuration file the vbr.py script uses to understand how to run the backup.
Follow the documentation for the current release to rebuild and reconfigure the database backup *.ini configuration file.
Current documentation reference at the time of the writing of this article is for release r3.5.