I've just purchased an OWC Mercury Elite-AL Pro SATA HDx2 HWRD with two Seagate 1TB drives. This will be used for data backup, not video streaming or anything requiring speed. Product description says it supports only RAID-0. I want to use Disk Utility to set up as RAID-1. Do I have to move a jumper or do anything else? Has anyone else tried using Disk Utility to create a RAID-1 setup on a RAID-0 enclosure?