17.10 - SpoolBigDBAllocUnit - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Database Utilities

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Publication ID
English (United States)

Determines the storage allocation unit size in sectors for multirow big data blocks in spool tables.

Field Group

File System

Valid Range

8 to 127 sectors

A sector is 512 bytes.

On cliques with 4 KB aligned devices, the setting is rounded up to the next 8-sector multiple.


1 sector

Changes Take Effect

After the DBS Control Record has been written.

For More Information

Changes to this field may be of less consequence than changes to the analogous PermDBAllocUnit field because spool tables are not updated frequently. Nevertheless, care should be taken when considering a change to this setting. Before making changes to this field, refer to the information for PermDBAllocUnit.