Manage Data Blocks | Teradata Vantage - Managing Data Blocks - Analytics Database - Teradata Vantage

Database Administration

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-11-03
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lifecycle
latest
Product Category
Teradata Vantageā„¢

A data block is the unit of physical I/O when Teradata Vantage writes data to disk. A data block contains one or more data rows from the same table. The system stores data blocks in segments, which are grouped in cylinders. You can set data block sizes for tables using SQL or set them globally using the DBS Control utility. If there is a conflict between the data block size value set for the system and for the table, the table value overrides the global value.