Xerox CSX 2000 Installation Manual page 228

Note that the screen captures in this procedure reflect the disk status using a
600/700 MHz CPU. If the CSX2000 Color Server has a 1 GHz CPU, the disk
order is different: the first 2 disks are Image Disks and the third is the System
disk.
The external device is disk 1 in the hatched area. In case the
external media is not new, disk 1 will not be hatched since it has
already been formatted. In this case, just verify that the drive letter
of disk 1 is other than E and ignore the following procedures. If the
drive letter of disk 1 is E, perform the procedure for changing the
assigned drive letter on page 225.