Standby State | Teradata Unity - 17.00 - Standby State - Continuous Availability - Teradata Unity

Teradata® Unity™ User Guide

Product
Continuous Availability
Teradata Unity
Release Number
17.00
Published
September 2020
Language
English (United States)
Last Update
2020-09-15
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When a Teradata system or table is in a Standby state, it only receives writes to keep current as long as there is another active copy. No reads are sent to a Teradata Database system or table in Standby unless no active Teradata system or table is available.

When demoting a system or table to a Standby state, all in-flight reads are complete and any new reads are rerouted to another Teradata system.

When a Teradata Database system is in Standby state, all tables on that system become Standby.