Is it possible to reduce or remove physical disks with Teradata Virtual Storage?
If yes I also would like to know how you operate it.
TVS allows you to mix storage technologies and to have the system migrate the most frequently accessed data to the fastest storage.
In turn, that may allow you to achieve desired performance and throughput while using (a smaller number of) higher density disks for some of the storage capacity.
See the Teradata Virtual Storage manual for more details.