For some time there are motherboards with built-in disk controllers coupled together to enable a different configuration or personal use most often observed that people use these controllers in two ways: either join the drive to enlarge the available disk space, or tempted by the demon speed drives unite in this way to allow a parallel reading of two (or more) units. Raid
But I do not fell so much to the taste - a little afraid of your files, and the more complicated setup, including in the event of failure something harder to recover. Recently, however, because of that it has two units I got the idea to separate system files from user files and put the system and the swap of one unit, and user files on the other. The result - great - I did not know that my old box, can again take a bit of air.
So simple advice: if you have two drives and you have no idea - in addition to getting rid of your allegro proposes a single mount partitions / home and the second to leave the whole system and swap partitions.
