I have installed SME7 on my server.  During the install I had 2 9gig SCSI drives in place.  It was setup as RAID1, md1 and md2.   
Now my question, being a total Linux newbie.
I've added my 4 80gig IDE drives to the system.  How do I set them up as 1 RAID5 Volume and make SME store all the users files/ibays to that volume.
Thanks in advance.
David