First, I would suggest spending sometime reviewing the materials in Teradata's Manuals. It would be much easier to provide guidance if you had a more specific question about Teradata's ARC utility than providing a walk-through in the forum. You can find the manuals for the Archive/Recovery utility for the various releases of Teradata here: http://www.info.teradata.com/templates/eSrchResults.cfm?prodline=&txtpid=&txtrelno=&txtttlkywrd=CARCREC&rdsort=Title&srtord=Asc&nm=Archive/Recovery
Secondly, many locations use some form of a third party environment to interface between their tape library (or SAN) and Teradata to manage the backup schedule. These can include (and are not limited to) NetBackup and NetVault.