Teradata Architecture

We have many relational databases available in market, teradata is one such RDBMS it is usually preferred when we are dealing data with tera bytes in size and when we need a very fast quick response for retrieval data.

Teradata main advantage is its parallelism architecture and utilities.Lets get to know more about it in a deeper way

we have Parsing engine which has 4 components
a)Session control- It checks for user/login credentials before processing the query
b)Parser-It checks for the SQL syntax and user rights to access various database objects referred in the SQL query submitted by user
c)Optimizer-It generates the query execution plan
d)Dispatcher-It passes execution plan to bynet and receives all the responses and sends back to user

Next we have Bynet it is the communication layer between PE (parsing engine) and AMP's ( access module processors).There are two bynets available Bynet-0 and Bynet-1 which help in continuous communication between AMP's and PE

The final and the most important component is AMP. It is considered as heart of teradata. AMP's are the one which do retrieval and processing the data. Each AMP is connected to its virtual disk where data is stored.They work on their vdisks and do not have to access to other amps vdisks
More the number of AMP's the better will be performance

Hope this article helps you in understanding teradata architecture in the coming posts we will see about teradata utilities

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