Disk Druid and cylinder numbers question

["Eric Wood" <eric interplas com>]

Install RH9 and I want to RAID /dev/hda and /dev/hdd together.  Both drives
are identical 40 gig Maxtors.  Hoever, Disk Druid shows:

/dev/hda
  Free space    1    4998    39205M    Free space
/dev/hdd
  Free space    1    79656    39205M    Free space

In BIOS, I've set the both drive translations either to Auto or to LBA.  No
matter what, Disk Druid presents different number of cylinders for the two
drives?  I don't think I'll be able to RAID them?

Any ideas?
-eric wood