The Reconfiguration and Configuration utilities are used to define the AMPs and PEs that operate together as a Teradata Database. (Configuration is described in Configuration Utility (config).)
Reconfiguration is the second step of the configuration and reconfiguration process that defines or modifies a Teradata Database system. Reconfiguration implements the Teradata Database system that is described in the new configuration map created in a previous Configuration utility session.
The Reconfiguration utility can be used to reconfigure the system in the following situations:
- Adding and removing nodes
- Changing the relationships of AMP and PE vprocs to nodes
- Changing the clustering used for AMP vprocs
- Moving the data dictionary tables from one contiguous map to another
- Changing the system default contiguous map
Other steps in configuring a system involve the Parallel Database Extensions (PDE) portions of Teradata Database, and are configured with the PUT utility. For more information on these configuration steps, see the Parallel Upgrade Tool (PUT) Reference, available from http://www.info.teradata.com.
Improper use of the Reconfiguration utility can result in data loss. Contact the Teradata Support Center before performing a system reconfiguration.