I'm not sure I understand you correctly. Also I don't know anything about RAID.
You can partition a disk with 'fdisk' (similar to Windows/DOS tool). So (as root)
# fdisk /dev/hda
let's you partition /dev/hda (you had better be booted off something else while you do this).
Use 'ls /proc/ide' to see your IDE drives. To make an XFS filesystem on a partition, use 'mkfs.xfs'.
Linux also has 'more', so 'ls -l | more' will work. As will 'ls -l | less'