Whilst studying for the Linux+ Exam just now, something hit me. If you ever run out of SATA/PATA ports on a system, you could just add more drives on the USB bus. this would be nice for the new RAID5 set up. Granted there’s the physical space/storage issues, but it’s still properly accessible storage. I wonder if mdadm would support the hot-plugability of USB in a RAID array. Hmmm… that would be very cool.