High Availability Overview | Teradata Data Mover - 17.00 - High Availability Overview - Teradata Data Mover

Teradata® Data Mover Installation, Configuration, and Upgrade Guide for Customers

Teradata Data Mover
Release Number
November 30, 2021
English (United States)
Last Update

A high availability configuration is the base configuration for a Data Mover system. If a primary (active) component of a system goes down, a high availability configuration makes sure that the system continues to function with components running on the secondary (standby) system.

A high availability configuration depends on a monitoring service, which monitors the active components through SSH connections to see if services are running. If any of the main services are down, a failover sequence begins the process of allowing the standby component to take over for the active component. The daemon, agent, Data Mover REST, and sync service that is monitored by the monitoring service on the active and standby components must be run using user dmuser. The monitoring service cannot be used to monitor Data Mover components if a user other than dmuser has been set up to run these services.