For migrations from Linux systems running Teradata Database releases earlier than 14.10, you must use the ARC utility in conjunction with BAR application software to back up and restore data. For migrations from 14.10 or later, you can use either DSA or ARC.
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.
Hardware Compression Driver Requirement
When restoring an archive made on a source system with hardware block-level compression, you must install the hardware compression driver package (teradata-expressdx) on all TPA nodes of the destination system. The installation requires a reboot of these nodes. Because it allows the destination system to read the compressed archive, this requirement applies even if the destination system is not set up for hardware compression.
The teradata-expressdx driver package is provided with systems that are equipped with compression hardware.