Teradata Vantage and Unity Server Upgrade: When you upgrade a database system or Unity server with a new release of Teradata Vantage, TDGSS does not overwrite the TdgssUserConfigFile.xml, but retains the existing configuration.
Teradata Operating System and Hardware Migration: When you migrate Teradata Vantage data to new hardware, or to the same hardware after a change of operating system, the following files and directories are automatically preserved:
- TDGSS site directory and its contents, including the LDAP configuration, if any.If the LDAP configuration and certificates are outside of the TDGSS site directory, the migration script will detect this and preserve the files and the non-standard directory structure.
- Certificates for the PROXY mechanism.
- If Kerberos is in use, the /etc/krb5.conf file and the file named in the KRB5 mechanism's TeradataKeyTab property are preserved.
The differences between the Unity and Vantage configurations are: Unity uses the tdgssconfig.bin file found in the TDGSS etc directory, the TdgssUserConfigFile.xml is named TdgssUnityConfig.xml and located outside of the normal TDGSS configuration at /etc/opt/teradata/config/unity, and is managed by Unity independently of the database. For Unity configuration information, see Teradata® Unity™ Installation, Configuration, and Upgrade Guide for Customers, B035-2523.