For migrations from Linux systems running Teradata Database releases earlier than 14.10 or from non-Linux systems, the ARC utility in conjunction with BAR application software must be used to back up and restore data; otherwise, the DSA or the ARC utility can be used.
The ARC utility and BAR software can co-exist with DSA on the same BAR hardware. However, ARC software restores only from ARC archives, and DSA restores only from DSA archives.
With the ARC utility, you use the command line to archive data. Teradata DSA allows you to back up and restore data using Teradata Viewpoint portlets and Symantec NetBackup.