A particular data extension need to be configured to store six months of data.

To configure a data extension to store data for six months, you should update the data extension configuration to include data retention settings.

Data Retention Settings: You can configure data retention directly within the data extension settings in Email Studio to specify how long data should be retained. This ensures that data older than the specified period is automatically deleted.

Go to Email Studio -> Subscribers -> Data Extensions.

Select the data extension you want to configure.

Click on "Properties".

Under "Data Retention", set the retention period to six months and define the retention settings accordingly.