Which type of root volume meets my needs?

UDA
The UDA channel is for Teradata’s Unified Data Architecture including the Analytical Ecosystem and other UDA influences. This channel provides information specific to the integration and co-existence of multiple systems, in particular when a mix of Aster, Teradata, and Hadoop are present. It is also meant to support information around the UDA enabling technologies so products like Viewpoint, Data Mover, Connectors, QueryGrid, etc.
Teradata Employee

Which type of root volume meets my needs?

Each instance is backed by Amazon EBS or backed by instance store.
Select an AMI based on which type of root volume you need.