When running the Data Repository validation script an error message is returned resulting in an inability for the installation to proceed.
The error states the following:
Validating connection to database host: DR_DB_Host.CA.com
Verifying database connection properties................................[FAIL]
At that point of its run, the validation script is performing a check for a DB connection. This check is only performed when the validation script believes there is already a DR DB installed. Why would that be in what should be a new installation run for the first time?
There as a past attempt to install the software that was not completed successfully. The failed installation was partially removed with the /opt/vertica directory remaining. This caused the validation script to believe it is an update not a new install.
Remove the failed install fully, including deleting the /opt/vertica directory.
Once done the validate script should no longer throw an error message.
See the "Uninstall the Data Repository" section of the CA Performance Management documentation