17.10 - UtilityReadAheadCount - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Database Utilities

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Configuration
Publication ID
B035-1102-171K
Language
English (United States)

Specifies the number of data blocks beyond the current block that will be preloaded into memory during file system utility (for example, Ferret) operations, such as SCANDISK, that occur when Vantage is running.

To enable the read-ahead feature, the ReadAhead field must be set to TRUE.

Field Group

Performance

Valid Range

1 through 100 blocks

Default

10 blocks

Changes Take Effect

After the DBS Control record has been written.

Usage Notes

The number of data blocks to be preloaded during file system utility operations when Vantage is not running is determined by the StandAloneReadAheadCount setting.