Chaparral K5312/K7313 - Manual (Page 37)

Creating and Managing Arrays
4-3
If you do not want to name the array, you can just press Enter. You can add or
change the name later.
The LUN screen displays.
3
Select the LUN for the array and press Enter.
The LUN that displays is the suggested default LUN assignment.
If the letters OV appear before a LUN, it indicates that the selection overlaps
with a soft LUN, probably the controller or SAF-TE Environmental Processor
(SEP) LUN. You can create an array at an overlapped LUN, but it is not visible
to the host system until you reboot the controller.
Note: Most Unix, Linux, and Macintosh operating systems require the
controller LUN be a higher value than all array LUNs. Before creating your
first array, change the controller LUN to a higher value or choose NONE
(best choice) if you are not using CAPI to manage the arrays. This allows
your first array to be seen at LUN 0.
The system warns you about the LUN for UNIX and Macintosh, as above, the
first time you create an array. Press Enter and the system asks if you want to be
warned again. Select No to avoid receiving this warning again, otherwise select
Yes to be warned the next time you create an array.