UtilityReadAheadCount - Teradata Vantage - Database Engine 20

Database Utilities

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Database Engine 20
Teradata Vantage
Release Number
20.00
Published
June 2025
ft:locale
en-US
ft:lastEdition
2026-03-26
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vkz1472241255652
lifecycle
latest
Product Category
Teradata Vantageā„¢

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.