16.20 - System Seeding Best Practices - Teradata Ecosystem Manager

Teradata® Ecosystem Manager User Guide

Product
Teradata Ecosystem Manager
Release Number
16.20
Published
December 2020
Language
English (United States)
Last Update
2020-12-23
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The full system seeding workflow has the following features:
  • Uses the Teradata ARC utility or DSA and Ecosystem Manager workflows to run.
  • Allows target systems anywhere (on-premises systems, private/public cloud systems).
  • Provides REST APIs to support workflow generation, deployment, and execution.
  • Supports the Teradata Database 14.10 and later.

Feature Notes

  • Data copying is limited to the Ecosystem Manager appliance infrastructure and network bandwidth between the source and target Teradata systems and Ecosystem Manager Appliance.
  • System seeding using ARC requires the all-AMP ARC main copy and does not support the multi-ARC copy using the TARA server. There is limited support for the Teradata MAPS feature when using ARC. ARC requires using an all-AMP map. If the source system has maps that are not all-AMP maps, those maps will not be copied as part of the full system seeding.
  • System seeding using DSA supports the Teradata MAPS feature.
  • The Rollback option only deletes user data. If a full recovery from the system seeding is needed, run the sysinit and dipall commands to return the target system back to the original state.

Use Cases

  • Copying a primary Teradata system, including dictionary and data, to a newer or existing empty Teradata system for disaster recovery.
  • Copying a primary Teradata system to a cloud-based instance for on-demand analytics and reporting.
  • Copying an initial dictionary only.

Prerequisites

The following prerequisites apply to ARC and DSA.
  • Both the source and target system must be Teradata Database 14.10 or later.
  • The Teradata source system version cannot be greater than the Teradata target system version. For example, if the source system is 16.20, the target system must be 16.20 or later.
  • The target system should not contain any user data.
  • For the target system, enable only dbc logon.

Follow the steps in the next section to enable dbc logons.