How fast should a VXA-2 drive backup? How fast should a VXA-2 drive backup? protocolpcs (IS/IT--Management) (OP) 6 Sep 05 23:04 How fast should our Exabyte EZ17 VXA-2 unit backup. It is attached to an Adaptec SCSI 160 controller. What is a typical mb per min for various types of files, no compression for 70 GB?