15.00 - Chapter 5 Reconfiguration Utility (reconfig) - Teradata Database

Teradata Database Support Utilities

prodname
Teradata Database
vrm_release
15.00
category
Configuration
featnum
B035-1180-015K

The Reconfiguration and Configuration utilities are used to define the AMPs and PEs that operate together as a Teradata Database. (Configuration is described in an earlier chapter of this manual.)

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 is most often used when adding nodes to an existing configuration. In addition, use the Reconfiguration utility to change the following:

  • Relationships of AMP and PE vprocs to nodes
  • Clustering of AMP vprocs
  • Size of hash buckets
  • 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/
    .

    For more information on considerations when planning a system reconfiguration, see the Teradata Knowledge Article at this URL: http://cks.teradata.com/skb/i/KAP1AF072.

    Caution:

    Improper use of the Reconfiguration utility can result in data loss. Contact the Teradata Support Center before performing a system reconfiguration.

    Scenarios Runs From

    The Reconfiguration Utility runs from Database Window or comparable interface to the Teradata Database console subsystem, such as cnsterm.

    For general information on starting the utilities from different interfaces, see Appendix B: “Starting the Utilities.”