I would like to JBOD a 4GB i-RAM drive and a SATA I HDD drive together. Is there any way to control which of the 2 drives is written to first? In effect, I would like to use the 4GB i-RAM drive as a huge cache in tandem with the HDD so that info is written to & read from the i-RAM first. Can that be done under Win XP Pro? Thanks.