Teradata DSA architecture has two user interfaces. The first interface, the BAR Setup and BAR Operations portlets, are Viewpoint portlets for DSA configuration and management. The second interface is a standard command-line interface that provides all of the functionality as the portlets provide, including DSA component configuration.
Enabling in the BAR Setup portlet increases security for the DSA environment. This setting requires users to provide Viewpoint credentials to execute some commands from the DSA CLI.
A DSA administrator might consider using the DSA command-line interface rather than the BAR portlets for specific situations, such as the following:
- Job scheduling, because this cannot be administered in the BAR Operations portlet.
- Exporting an XML file associated with a job created in the portlet.
- Streamlining the updates of multiple job definitions.
- Using scripts to automate DSA commands.
Because BAR portlets are optimized to use caching in order to minimize the impact on DSC, if you use job scripting automation through the DSA command-line interface, there should be a 30 second interval between DSC command requests.