I am running a Dell Poweredge 2600 with 3 36 gig hardrives. The hardrives are setup for Raid5 in top 3 slots with 1x6 backplane. I have to add 3 146gig drives in the bottom 3 slots. The drives will be new and will ultimately have their own independent drive letter. How do I add each one as a non-Raid drive and will it affect the 3 Raid 5 drives. I must maintain integrity to this Raid 5 setup.