15.00 - 15.10 - Down Subtable Recovery - Teradata Database

Teradata Database Introduction to Teradata

Teradata Database
Release Number
Content Type
User Guide
Publication ID
English (United States)
Last Update

Teradata Database can isolate some file system errors to a specific data or index subtable, or to a contiguous range of rows (“region”) in a data or index subtable. In these cases, Teradata Database marks only the affected subtable or region down. This improves system performance and availability by allowing transactions that do not require access to the down subtable or rows to proceed, without causing a database crash that would require a system restart.

In-progress transactions that require the down subtable or region are aborted. Subsequent transactions that require access to the down subtable or region are not allowed until the problem is fixed.