WAN Outage | Teradata Business Continuity Manager - WAN Outage - Teradata Business Continuity Manager

Teradata® Business Continuity Manager User Guide - 1.01.01

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Teradata Business Continuity Manager
Release Number
1.01.01
Published
March 2023
Language
English (United States)
Last Update
2023-03-13
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qra1653979755546.ditamap
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dita:id
B035-2550
lifecycle
previous
Product Category
Analytical Ecosystem
If the issue is a network WAN outage, it is most likely that the initially active sequencer is still active and the work in the primary data center was not interrupted. In this situation, the work in the second data center with the standby sequencer is halted because it cannot connect to the active sequencer. However, any applications connecting to the active sequencer are still online. For this reason, there is no automatic failover to the standby sequencer.
If the issue is a WAN outage, do not failover to the standby sequencer. This action can result in a split-brain failure leading to irresolvable data inconsistencies. The correct course of action is to work on resolving the network outage.