Journal Impact on Recovery - TARA/ABU

Teradata Archive/Recovery Utility Reference

Product
TARA/ABU
Release Number
16.10
Published
May 2017
Language
English (United States)
Last Update
2018-05-01
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B035-2412
lifecycle
previous
Product Category
Teradata Tools and Utilities

If a logical disk is damaged, data tables with local single after-image journaling might not be recovered beyond the last archived data. On the other hand, data tables with remote single after-image journaling might be recovered to the most recent transaction.

While the risks of cylinder corruption are minimal, a cylinder containing a user table and master journal, or a master index, can become corrupted. If this occurs, local journaling does not offer as much protection as remote journaling.